Put CPDF_StreamContentParser into its own .cpp/.h files

No functional changes.
Make many of its methods private.

Review-Url: https://codereview.chromium.org/2415943003

5 files changed, 1789 insertions, 1719 deletions

diff --git a/BUILD.gn b/BUILD.gn
index 5e1e4b5500..f87201cc57 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -469,6 +469,8 @@ static_library("fpdfapi") {
     "core/fpdfapi/page/cpdf_shadingobject.h",
     "core/fpdfapi/page/cpdf_shadingpattern.cpp",
     "core/fpdfapi/page/cpdf_shadingpattern.h",
+    "core/fpdfapi/page/cpdf_streamcontentparser.cpp",
+    "core/fpdfapi/page/cpdf_streamcontentparser.h",
     "core/fpdfapi/page/cpdf_textobject.cpp",
     "core/fpdfapi/page/cpdf_textobject.h",
     "core/fpdfapi/page/cpdf_textstate.cpp",
diff --git a/core/fpdfapi/page/cpdf_streamcontentparser.cpp b/core/fpdfapi/page/cpdf_streamcontentparser.cpp
new file mode 100644
index 0000000000..60c9b527a3
--- /dev/null
+++ b/core/fpdfapi/page/cpdf_streamcontentparser.cpp
@@ -0,0 +1,1561 @@
+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "core/fpdfapi/page/cpdf_streamcontentparser.h"
+
+#include "core/fpdfapi/font/cpdf_font.h"
+#include "core/fpdfapi/font/cpdf_type3font.h"
+#include "core/fpdfapi/page/cpdf_allstates.h"
+#include "core/fpdfapi/page/cpdf_docpagedata.h"
+#include "core/fpdfapi/page/cpdf_form.h"
+#include "core/fpdfapi/page/cpdf_formobject.h"
+#include "core/fpdfapi/page/cpdf_image.h"
+#include "core/fpdfapi/page/cpdf_imageobject.h"
+#include "core/fpdfapi/page/cpdf_meshstream.h"
+#include "core/fpdfapi/page/cpdf_pageobject.h"
+#include "core/fpdfapi/page/cpdf_pathobject.h"
+#include "core/fpdfapi/page/cpdf_shadingobject.h"
+#include "core/fpdfapi/page/cpdf_shadingpattern.h"
+#include "core/fpdfapi/page/cpdf_textobject.h"
+#include "core/fpdfapi/page/pageint.h"
+#include "core/fpdfapi/parser/cpdf_array.h"
+#include "core/fpdfapi/parser/cpdf_document.h"
+#include "core/fpdfapi/parser/cpdf_name.h"
+#include "core/fpdfapi/parser/cpdf_number.h"
+#include "core/fpdfapi/parser/fpdf_parser_decode.h"
+#include "core/fxcrt/fx_safe_types.h"
+#include "third_party/base/ptr_util.h"
+
+namespace {
+
+const int kMaxFormLevel = 30;
+
+const int kSingleCoordinatePair = 1;
+const int kTensorCoordinatePairs = 16;
+const int kCoonsCoordinatePairs = 12;
+const int kSingleColorPerPatch = 1;
+const int kQuadColorsPerPatch = 4;
+
+const char kPathOperatorSubpath = 'm';
+const char kPathOperatorLine = 'l';
+const char kPathOperatorCubicBezier1 = 'c';
+const char kPathOperatorCubicBezier2 = 'v';
+const char kPathOperatorCubicBezier3 = 'y';
+const char kPathOperatorClosePath = 'h';
+const char kPathOperatorRectangle[] = "re";
+
+class CPDF_StreamParserAutoClearer {
+ public:
+  CPDF_StreamParserAutoClearer(CPDF_StreamParser** scoped_variable,
+                               CPDF_StreamParser* new_parser)
+      : scoped_variable_(scoped_variable) {
+    *scoped_variable_ = new_parser;
+  }
+  ~CPDF_StreamParserAutoClearer() { *scoped_variable_ = nullptr; }
+
+ private:
+  CPDF_StreamParser** scoped_variable_;
+};
+
+CFX_FloatRect GetShadingBBox(CPDF_ShadingPattern* pShading,
+                             const CFX_Matrix& matrix) {
+  ShadingType type = pShading->GetShadingType();
+  CPDF_Stream* pStream = ToStream(pShading->GetShadingObject());
+  CPDF_ColorSpace* pCS = pShading->GetCS();
+  if (!pStream || !pCS)
+    return CFX_FloatRect(0, 0, 0, 0);
+
+  CPDF_MeshStream stream(type, pShading->GetFuncs(), pStream, pCS);
+  if (!stream.Load())
+    return CFX_FloatRect(0, 0, 0, 0);
+
+  CFX_FloatRect rect;
+  bool bStarted = false;
+  bool bGouraud = type == kFreeFormGouraudTriangleMeshShading ||
+                  type == kLatticeFormGouraudTriangleMeshShading;
+
+  int point_count = kSingleCoordinatePair;
+  if (type == kTensorProductPatchMeshShading)
+    point_count = kTensorCoordinatePairs;
+  else if (type == kCoonsPatchMeshShading)
+    point_count = kCoonsCoordinatePairs;
+
+  int color_count = kSingleColorPerPatch;
+  if (type == kCoonsPatchMeshShading || type == kTensorProductPatchMeshShading)
+    color_count = kQuadColorsPerPatch;
+
+  while (!stream.BitStream()->IsEOF()) {
+    uint32_t flag = 0;
+    if (type != kLatticeFormGouraudTriangleMeshShading)
+      flag = stream.GetFlag();
+
+    if (!bGouraud && flag) {
+      point_count -= 4;
+      color_count -= 2;
+    }
+
+    for (int i = 0; i < point_count; i++) {
+      FX_FLOAT x;
+      FX_FLOAT y;
+      stream.GetCoords(x, y);
+      if (bStarted) {
+        rect.UpdateRect(x, y);
+      } else {
+        rect.InitRect(x, y);
+        bStarted = true;
+      }
+    }
+    FX_SAFE_UINT32 nBits = stream.Components();
+    nBits *= stream.ComponentBits();
+    nBits *= color_count;
+    if (!nBits.IsValid())
+      break;
+
+    stream.BitStream()->SkipBits(nBits.ValueOrDie());
+    if (bGouraud)
+      stream.BitStream()->ByteAlign();
+  }
+  rect.Transform(&matrix);
+  return rect;
+}
+
+}  // namespace
+
+CPDF_StreamContentParser::CPDF_StreamContentParser(
+    CPDF_Document* pDocument,
+    CPDF_Dictionary* pPageResources,
+    CPDF_Dictionary* pParentResources,
+    const CFX_Matrix* pmtContentToUser,
+    CPDF_PageObjectHolder* pObjHolder,
+    CPDF_Dictionary* pResources,
+    CFX_FloatRect* pBBox,
+    CPDF_AllStates* pStates,
+    int level)
+    : m_pDocument(pDocument),
+      m_pPageResources(pPageResources),
+      m_pParentResources(pParentResources),
+      m_pResources(pResources),
+      m_pObjectHolder(pObjHolder),
+      m_Level(level),
+      m_ParamStartPos(0),
+      m_ParamCount(0),
+      m_pCurStates(new CPDF_AllStates),
+      m_pLastTextObject(nullptr),
+      m_DefFontSize(0),
+      m_pPathPoints(nullptr),
+      m_PathPointCount(0),
+      m_PathAllocSize(0),
+      m_PathCurrentX(0.0f),
+      m_PathCurrentY(0.0f),
+      m_PathClipType(0),
+      m_pLastImage(nullptr),
+      m_pLastImageDict(nullptr),
+      m_pLastCloneImageDict(nullptr),
+      m_bColored(false),
+      m_bResourceMissing(false) {
+  if (pmtContentToUser)
+    m_mtContentToUser = *pmtContentToUser;
+  if (!m_pResources)
+    m_pResources = m_pParentResources;
+  if (!m_pResources)
+    m_pResources = m_pPageResources;
+  if (pBBox)
+    m_BBox = *pBBox;
+  if (pStates) {
+    m_pCurStates->Copy(*pStates);
+  } else {
+    m_pCurStates->m_GeneralState.Emplace();
+    m_pCurStates->m_GraphState.Emplace();
+    m_pCurStates->m_TextState.Emplace();
+    m_pCurStates->m_ColorState.Emplace();
+  }
+  for (size_t i = 0; i < FX_ArraySize(m_Type3Data); ++i) {
+    m_Type3Data[i] = 0.0;
+  }
+}
+
+CPDF_StreamContentParser::~CPDF_StreamContentParser() {
+  ClearAllParams();
+  FX_Free(m_pPathPoints);
+  if (m_pLastImageDict) {
+    m_pLastImageDict->Release();
+  }
+  if (m_pLastCloneImageDict) {
+    m_pLastCloneImageDict->Release();
+  }
+}
+
+int CPDF_StreamContentParser::GetNextParamPos() {
+  if (m_ParamCount == kParamBufSize) {
+    m_ParamStartPos++;
+    if (m_ParamStartPos == kParamBufSize) {
+      m_ParamStartPos = 0;
+    }
+    if (m_ParamBuf[m_ParamStartPos].m_Type == 0) {
+      if (CPDF_Object* pObject = m_ParamBuf[m_ParamStartPos].m_pObject)
+        pObject->Release();
+    }
+    return m_ParamStartPos;
+  }
+  int index = m_ParamStartPos + m_ParamCount;
+  if (index >= kParamBufSize) {
+    index -= kParamBufSize;
+  }
+  m_ParamCount++;
+  return index;
+}
+
+void CPDF_StreamContentParser::AddNameParam(const FX_CHAR* name, int len) {
+  CFX_ByteStringC bsName(name, len);
+  ContentParam& param = m_ParamBuf[GetNextParamPos()];
+  if (len > 32) {
+    param.m_Type = ContentParam::OBJECT;
+    param.m_pObject = new CPDF_Name(
+        m_pDocument->GetByteStringPool()->Intern(PDF_NameDecode(bsName)));
+  } else {
+    param.m_Type = ContentParam::NAME;
+    if (bsName.Find('#') == -1) {
+      FXSYS_memcpy(param.m_Name.m_Buffer, name, len);
+      param.m_Name.m_Len = len;
+    } else {
+      CFX_ByteString str = PDF_NameDecode(bsName);
+      FXSYS_memcpy(param.m_Name.m_Buffer, str.c_str(), str.GetLength());
+      param.m_Name.m_Len = str.GetLength();
+    }
+  }
+}
+
+void CPDF_StreamContentParser::AddNumberParam(const FX_CHAR* str, int len) {
+  ContentParam& param = m_ParamBuf[GetNextParamPos()];
+  param.m_Type = ContentParam::NUMBER;
+  param.m_Number.m_bInteger =
+      FX_atonum(CFX_ByteStringC(str, len), &param.m_Number.m_Integer);
+}
+
+void CPDF_StreamContentParser::AddObjectParam(CPDF_Object* pObj) {
+  ContentParam& param = m_ParamBuf[GetNextParamPos()];
+  param.m_Type = ContentParam::OBJECT;
+  param.m_pObject = pObj;
+}
+
+void CPDF_StreamContentParser::ClearAllParams() {
+  uint32_t index = m_ParamStartPos;
+  for (uint32_t i = 0; i < m_ParamCount; i++) {
+    if (m_ParamBuf[index].m_Type == 0) {
+      if (CPDF_Object* pObject = m_ParamBuf[index].m_pObject)
+        pObject->Release();
+    }
+    index++;
+    if (index == kParamBufSize) {
+      index = 0;
+    }
+  }
+  m_ParamStartPos = 0;
+  m_ParamCount = 0;
+}
+
+CPDF_Object* CPDF_StreamContentParser::GetObject(uint32_t index) {
+  if (index >= m_ParamCount) {
+    return nullptr;
+  }
+  int real_index = m_ParamStartPos + m_ParamCount - index - 1;
+  if (real_index >= kParamBufSize) {
+    real_index -= kParamBufSize;
+  }
+  ContentParam& param = m_ParamBuf[real_index];
+  if (param.m_Type == ContentParam::NUMBER) {
+    CPDF_Number* pNumber = param.m_Number.m_bInteger
+                               ? new CPDF_Number(param.m_Number.m_Integer)
+                               : new CPDF_Number(param.m_Number.m_Float);
+
+    param.m_Type = ContentParam::OBJECT;
+    param.m_pObject = pNumber;
+    return pNumber;
+  }
+  if (param.m_Type == ContentParam::NAME) {
+    CPDF_Name* pName = new CPDF_Name(m_pDocument->GetByteStringPool()->Intern(
+        CFX_ByteString(param.m_Name.m_Buffer, param.m_Name.m_Len)));
+    param.m_Type = ContentParam::OBJECT;
+    param.m_pObject = pName;
+    return pName;
+  }
+  if (param.m_Type == ContentParam::OBJECT) {
+    return param.m_pObject;
+  }
+  ASSERT(FALSE);
+  return nullptr;
+}
+
+CFX_ByteString CPDF_StreamContentParser::GetString(uint32_t index) {
+  if (index >= m_ParamCount) {
+    return CFX_ByteString();
+  }
+  int real_index = m_ParamStartPos + m_ParamCount - index - 1;
+  if (real_index >= kParamBufSize) {
+    real_index -= kParamBufSize;
+  }
+  ContentParam& param = m_ParamBuf[real_index];
+  if (param.m_Type == ContentParam::NAME) {
+    return CFX_ByteString(param.m_Name.m_Buffer, param.m_Name.m_Len);
+  }
+  if (param.m_Type == 0 && param.m_pObject) {
+    return param.m_pObject->GetString();
+  }
+  return CFX_ByteString();
+}
+
+FX_FLOAT CPDF_StreamContentParser::GetNumber(uint32_t index) {
+  if (index >= m_ParamCount) {
+    return 0;
+  }
+  int real_index = m_ParamStartPos + m_ParamCount - index - 1;
+  if (real_index >= kParamBufSize) {
+    real_index -= kParamBufSize;
+  }
+  ContentParam& param = m_ParamBuf[real_index];
+  if (param.m_Type == ContentParam::NUMBER) {
+    return param.m_Number.m_bInteger ? (FX_FLOAT)param.m_Number.m_Integer
+                                     : param.m_Number.m_Float;
+  }
+  if (param.m_Type == 0 && param.m_pObject) {
+    return param.m_pObject->GetNumber();
+  }
+  return 0;
+}
+
+void CPDF_StreamContentParser::SetGraphicStates(CPDF_PageObject* pObj,
+                                                bool bColor,
+                                                bool bText,
+                                                bool bGraph) {
+  pObj->m_GeneralState = m_pCurStates->m_GeneralState;
+  pObj->m_ClipPath = m_pCurStates->m_ClipPath;
+  pObj->m_ContentMark = m_CurContentMark;
+  if (bColor) {
+    pObj->m_ColorState = m_pCurStates->m_ColorState;
+  }
+  if (bGraph) {
+    pObj->m_GraphState = m_pCurStates->m_GraphState;
+  }
+  if (bText) {
+    pObj->m_TextState = m_pCurStates->m_TextState;
+  }
+}
+
+// static
+CPDF_StreamContentParser::OpCodes
+CPDF_StreamContentParser::InitializeOpCodes() {
+  return OpCodes({
+      {FXBSTR_ID('"', 0, 0, 0),
+       &CPDF_StreamContentParser::Handle_NextLineShowText_Space},
+      {FXBSTR_ID('\'', 0, 0, 0),
+       &CPDF_StreamContentParser::Handle_NextLineShowText},
+      {FXBSTR_ID('B', 0, 0, 0),
+       &CPDF_StreamContentParser::Handle_FillStrokePath},
+      {FXBSTR_ID('B', '*', 0, 0),
+       &CPDF_StreamContentParser::Handle_EOFillStrokePath},
+      {FXBSTR_ID('B', 'D', 'C', 0),
+       &CPDF_StreamContentParser::Handle_BeginMarkedContent_Dictionary},
+      {FXBSTR_ID('B', 'I', 0, 0), &CPDF_StreamContentParser::Handle_BeginImage},
+      {FXBSTR_ID('B', 'M', 'C', 0),
+       &CPDF_StreamContentParser::Handle_BeginMarkedContent},
+      {FXBSTR_ID('B', 'T', 0, 0), &CPDF_StreamContentParser::Handle_BeginText},
+      {FXBSTR_ID('C', 'S', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetColorSpace_Stroke},
+      {FXBSTR_ID('D', 'P', 0, 0),
+       &CPDF_StreamContentParser::Handle_MarkPlace_Dictionary},
+      {FXBSTR_ID('D', 'o', 0, 0),
+       &CPDF_StreamContentParser::Handle_ExecuteXObject},
+      {FXBSTR_ID('E', 'I', 0, 0), &CPDF_StreamContentParser::Handle_EndImage},
+      {FXBSTR_ID('E', 'M', 'C', 0),
+       &CPDF_StreamContentParser::Handle_EndMarkedContent},
+      {FXBSTR_ID('E', 'T', 0, 0), &CPDF_StreamContentParser::Handle_EndText},
+      {FXBSTR_ID('F', 0, 0, 0), &CPDF_StreamContentParser::Handle_FillPathOld},
+      {FXBSTR_ID('G', 0, 0, 0),
+       &CPDF_StreamContentParser::Handle_SetGray_Stroke},
+      {FXBSTR_ID('I', 'D', 0, 0),
+       &CPDF_StreamContentParser::Handle_BeginImageData},
+      {FXBSTR_ID('J', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetLineCap},
+      {FXBSTR_ID('K', 0, 0, 0),
+       &CPDF_StreamContentParser::Handle_SetCMYKColor_Stroke},
+      {FXBSTR_ID('M', 0, 0, 0),
+       &CPDF_StreamContentParser::Handle_SetMiterLimit},
+      {FXBSTR_ID('M', 'P', 0, 0), &CPDF_StreamContentParser::Handle_MarkPlace},
+      {FXBSTR_ID('Q', 0, 0, 0),
+       &CPDF_StreamContentParser::Handle_RestoreGraphState},
+      {FXBSTR_ID('R', 'G', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetRGBColor_Stroke},
+      {FXBSTR_ID('S', 0, 0, 0), &CPDF_StreamContentParser::Handle_StrokePath},
+      {FXBSTR_ID('S', 'C', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetColor_Stroke},
+      {FXBSTR_ID('S', 'C', 'N', 0),
+       &CPDF_StreamContentParser::Handle_SetColorPS_Stroke},
+      {FXBSTR_ID('T', '*', 0, 0),
+       &CPDF_StreamContentParser::Handle_MoveToNextLine},
+      {FXBSTR_ID('T', 'D', 0, 0),
+       &CPDF_StreamContentParser::Handle_MoveTextPoint_SetLeading},
+      {FXBSTR_ID('T', 'J', 0, 0),
+       &CPDF_StreamContentParser::Handle_ShowText_Positioning},
+      {FXBSTR_ID('T', 'L', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetTextLeading},
+      {FXBSTR_ID('T', 'c', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetCharSpace},
+      {FXBSTR_ID('T', 'd', 0, 0),
+       &CPDF_StreamContentParser::Handle_MoveTextPoint},
+      {FXBSTR_ID('T', 'f', 0, 0), &CPDF_StreamContentParser::Handle_SetFont},
+      {FXBSTR_ID('T', 'j', 0, 0), &CPDF_StreamContentParser::Handle_ShowText},
+      {FXBSTR_ID('T', 'm', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetTextMatrix},
+      {FXBSTR_ID('T', 'r', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetTextRenderMode},
+      {FXBSTR_ID('T', 's', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetTextRise},
+      {FXBSTR_ID('T', 'w', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetWordSpace},
+      {FXBSTR_ID('T', 'z', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetHorzScale},
+      {FXBSTR_ID('W', 0, 0, 0), &CPDF_StreamContentParser::Handle_Clip},
+      {FXBSTR_ID('W', '*', 0, 0), &CPDF_StreamContentParser::Handle_EOClip},
+      {FXBSTR_ID('b', 0, 0, 0),
+       &CPDF_StreamContentParser::Handle_CloseFillStrokePath},
+      {FXBSTR_ID('b', '*', 0, 0),
+       &CPDF_StreamContentParser::Handle_CloseEOFillStrokePath},
+      {FXBSTR_ID('c', 0, 0, 0), &CPDF_StreamContentParser::Handle_CurveTo_123},
+      {FXBSTR_ID('c', 'm', 0, 0),
+       &CPDF_StreamContentParser::Handle_ConcatMatrix},
+      {FXBSTR_ID('c', 's', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetColorSpace_Fill},
+      {FXBSTR_ID('d', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetDash},
+      {FXBSTR_ID('d', '0', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetCharWidth},
+      {FXBSTR_ID('d', '1', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetCachedDevice},
+      {FXBSTR_ID('f', 0, 0, 0), &CPDF_StreamContentParser::Handle_FillPath},
+      {FXBSTR_ID('f', '*', 0, 0), &CPDF_StreamContentParser::Handle_EOFillPath},
+      {FXBSTR_ID('g', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetGray_Fill},
+      {FXBSTR_ID('g', 's', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetExtendGraphState},
+      {FXBSTR_ID('h', 0, 0, 0), &CPDF_StreamContentParser::Handle_ClosePath},
+      {FXBSTR_ID('i', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetFlat},
+      {FXBSTR_ID('j', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetLineJoin},
+      {FXBSTR_ID('k', 0, 0, 0),
+       &CPDF_StreamContentParser::Handle_SetCMYKColor_Fill},
+      {FXBSTR_ID('l', 0, 0, 0), &CPDF_StreamContentParser::Handle_LineTo},
+      {FXBSTR_ID('m', 0, 0, 0), &CPDF_StreamContentParser::Handle_MoveTo},
+      {FXBSTR_ID('n', 0, 0, 0), &CPDF_StreamContentParser::Handle_EndPath},
+      {FXBSTR_ID('q', 0, 0, 0),
+       &CPDF_StreamContentParser::Handle_SaveGraphState},
+      {FXBSTR_ID('r', 'e', 0, 0), &CPDF_StreamContentParser::Handle_Rectangle},
+      {FXBSTR_ID('r', 'g', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetRGBColor_Fill},
+      {FXBSTR_ID('r', 'i', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetRenderIntent},
+      {FXBSTR_ID('s', 0, 0, 0),
+       &CPDF_StreamContentParser::Handle_CloseStrokePath},
+      {FXBSTR_ID('s', 'c', 0, 0),
+       &CPDF_StreamContentParser::Handle_SetColor_Fill},
+      {FXBSTR_ID('s', 'c', 'n', 0),
+       &CPDF_StreamContentParser::Handle_SetColorPS_Fill},
+      {FXBSTR_ID('s', 'h', 0, 0), &CPDF_StreamContentParser::Handle_ShadeFill},
+      {FXBSTR_ID('v', 0, 0, 0), &CPDF_StreamContentParser::Handle_CurveTo_23},
+      {FXBSTR_ID('w', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetLineWidth},
+      {FXBSTR_ID('y', 0, 0, 0), &CPDF_StreamContentParser::Handle_CurveTo_13},
+  });
+}
+
+void CPDF_StreamContentParser::OnOperator(const FX_CHAR* op) {
+  int i = 0;
+  uint32_t opid = 0;
+  while (i < 4 && op[i]) {
+    opid = (opid << 8) + op[i];
+    i++;
+  }
+  while (i < 4) {
+    opid <<= 8;
+    i++;
+  }
+
+  static const OpCodes s_OpCodes = InitializeOpCodes();
+
+  auto it = s_OpCodes.find(opid);
+  if (it != s_OpCodes.end())
+    (this->*it->second)();
+}
+
+void CPDF_StreamContentParser::Handle_CloseFillStrokePath() {
+  Handle_ClosePath();
+  AddPathObject(FXFILL_WINDING, true);
+}
+
+void CPDF_StreamContentParser::Handle_FillStrokePath() {
+  AddPathObject(FXFILL_WINDING, true);
+}
+
+void CPDF_StreamContentParser::Handle_CloseEOFillStrokePath() {
+  AddPathPoint(m_PathStartX, m_PathStartY, FXPT_LINETO | FXPT_CLOSEFIGURE);
+  AddPathObject(FXFILL_ALTERNATE, true);
+}
+
+void CPDF_StreamContentParser::Handle_EOFillStrokePath() {
+  AddPathObject(FXFILL_ALTERNATE, true);
+}
+
+void CPDF_StreamContentParser::Handle_BeginMarkedContent_Dictionary() {
+  CFX_ByteString tag = GetString(1);
+  CPDF_Object* pProperty = GetObject(0);
+  if (!pProperty) {
+    return;
+  }
+  bool bDirect = true;
+  if (pProperty->IsName()) {
+    pProperty = FindResourceObj("Properties", pProperty->GetString());
+    if (!pProperty)
+      return;
+    bDirect = false;
+  }
+  if (CPDF_Dictionary* pDict = pProperty->AsDictionary()) {
+    m_CurContentMark.AddMark(tag, pDict, bDirect);
+  }
+}
+
+void CPDF_StreamContentParser::Handle_BeginImage() {
+  FX_FILESIZE savePos = m_pSyntax->GetPos();
+  CPDF_Dictionary* pDict =
+      new CPDF_Dictionary(m_pDocument->GetByteStringPool());
+  while (1) {
+    CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
+    if (type == CPDF_StreamParser::Keyword) {
+      CFX_ByteString bsKeyword(m_pSyntax->GetWordBuf(),
+                               m_pSyntax->GetWordSize());
+      if (bsKeyword != "ID") {
+        m_pSyntax->SetPos(savePos);
+        pDict->Release();
+        return;
+      }
+    }
+    if (type != CPDF_StreamParser::Name) {
+      break;
+    }
+    CFX_ByteString key((const FX_CHAR*)m_pSyntax->GetWordBuf() + 1,
+                       m_pSyntax->GetWordSize() - 1);
+    std::unique_ptr<CPDF_Object, ReleaseDeleter<CPDF_Object>> pObj(
+        m_pSyntax->ReadNextObject(false, 0));
+    if (!key.IsEmpty()) {
+      uint32_t dwObjNum = pObj ? pObj->GetObjNum() : 0;
+      if (dwObjNum)
+        pDict->SetReferenceFor(key, m_pDocument, dwObjNum);
+      else
+        pDict->SetFor(key, pObj.release());
+    }
+  }
+  PDF_ReplaceAbbr(pDict);
+  CPDF_Object* pCSObj = nullptr;
+  if (pDict->KeyExist("ColorSpace")) {
+    pCSObj = pDict->GetDirectObjectFor("ColorSpace");
+    if (pCSObj->IsName()) {
+      CFX_ByteString name = pCSObj->GetString();
+      if (name != "DeviceRGB" && name != "DeviceGray" && name != "DeviceCMYK") {
+        pCSObj = FindResourceObj("ColorSpace", name);
+        if (pCSObj && pCSObj->IsInline()) {
+          pCSObj = pCSObj->Clone();
+          pDict->SetFor("ColorSpace", pCSObj);
+        }
+      }
+    }
+  }
+  pDict->SetNameFor("Subtype", "Image");
+  UniqueStream pStream(m_pSyntax->ReadInlineStream(m_pDocument, pDict, pCSObj));
+  bool bGaveDictAway = !!pStream;
+  while (1) {
+    CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
+    if (type == CPDF_StreamParser::EndOfData) {
+      break;
+    }
+    if (type != CPDF_StreamParser::Keyword) {
+      continue;
+    }
+    if (m_pSyntax->GetWordSize() == 2 && m_pSyntax->GetWordBuf()[0] == 'E' &&
+        m_pSyntax->GetWordBuf()[1] == 'I') {
+      break;
+    }
+  }
+  CPDF_ImageObject* pImgObj = AddImage(std::move(pStream));
+  if (!pImgObj && !bGaveDictAway)
+    pDict->Release();
+}
+
+void CPDF_StreamContentParser::Handle_BeginMarkedContent() {
+  m_CurContentMark.AddMark(GetString(0), nullptr, FALSE);
+}
+
+void CPDF_StreamContentParser::Handle_BeginText() {
+  m_pCurStates->m_TextMatrix.Set(1.0f, 0, 0, 1.0f, 0, 0);
+  OnChangeTextMatrix();
+  m_pCurStates->m_TextX = 0;
+  m_pCurStates->m_TextY = 0;
+  m_pCurStates->m_TextLineX = 0;
+  m_pCurStates->m_TextLineY = 0;
+}
+
+void CPDF_StreamContentParser::Handle_CurveTo_123() {
+  AddPathPoint(GetNumber(5), GetNumber(4), FXPT_BEZIERTO);
+  AddPathPoint(GetNumber(3), GetNumber(2), FXPT_BEZIERTO);
+  AddPathPoint(GetNumber(1), GetNumber(0), FXPT_BEZIERTO);
+}
+
+void CPDF_StreamContentParser::Handle_ConcatMatrix() {
+  CFX_Matrix new_matrix(GetNumber(5), GetNumber(4), GetNumber(3), GetNumber(2),
+                        GetNumber(1), GetNumber(0));
+  new_matrix.Concat(m_pCurStates->m_CTM);
+  m_pCurStates->m_CTM = new_matrix;
+  OnChangeTextMatrix();
+}
+
+void CPDF_StreamContentParser::Handle_SetColorSpace_Fill() {
+  CPDF_ColorSpace* pCS = FindColorSpace(GetString(0));
+  if (!pCS)
+    return;
+
+  m_pCurStates->m_ColorState.GetMutableFillColor()->SetColorSpace(pCS);
+}
+
+void CPDF_StreamContentParser::Handle_SetColorSpace_Stroke() {
+  CPDF_ColorSpace* pCS = FindColorSpace(GetString(0));
+  if (!pCS)
+    return;
+
+  m_pCurStates->m_ColorState.GetMutableStrokeColor()->SetColorSpace(pCS);
+}
+
+void CPDF_StreamContentParser::Handle_SetDash() {
+  CPDF_Array* pArray = ToArray(GetObject(1));
+  if (!pArray)
+    return;
+
+  m_pCurStates->SetLineDash(pArray, GetNumber(0), 1.0f);
+}
+
+void CPDF_StreamContentParser::Handle_SetCharWidth() {
+  m_Type3Data[0] = GetNumber(1);
+  m_Type3Data[1] = GetNumber(0);
+  m_bColored = true;
+}
+
+void CPDF_StreamContentParser::Handle_SetCachedDevice() {
+  for (int i = 0; i < 6; i++) {
+    m_Type3Data[i] = GetNumber(5 - i);
+  }
+  m_bColored = false;
+}
+
+void CPDF_StreamContentParser::Handle_ExecuteXObject() {
+  CFX_ByteString name = GetString(0);
+  if (name == m_LastImageName && m_pLastImage && m_pLastImage->GetStream() &&
+      m_pLastImage->GetStream()->GetObjNum()) {
+    AddImage(m_pLastImage);
+    return;
+  }
+
+  CPDF_Stream* pXObject = ToStream(FindResourceObj("XObject", name));
+  if (!pXObject) {
+    m_bResourceMissing = true;
+    return;
+  }
+
+  CFX_ByteString type;
+  if (pXObject->GetDict())
+    type = pXObject->GetDict()->GetStringFor("Subtype");
+
+  if (type == "Image") {
+    CPDF_ImageObject* pObj = AddImage(pXObject->GetObjNum());
+    m_LastImageName = name;
+    m_pLastImage = pObj->GetImage();
+    if (!m_pObjectHolder->HasImageMask())
+      m_pObjectHolder->SetHasImageMask(m_pLastImage->IsMask());
+  } else if (type == "Form") {
+    AddForm(pXObject);
+  }
+}
+
+void CPDF_StreamContentParser::AddForm(CPDF_Stream* pStream) {
+  std::unique_ptr<CPDF_FormObject> pFormObj(new CPDF_FormObject);
+  pFormObj->m_pForm.reset(
+      new CPDF_Form(m_pDocument, m_pPageResources, pStream, m_pResources));
+  pFormObj->m_FormMatrix = m_pCurStates->m_CTM;
+  pFormObj->m_FormMatrix.Concat(m_mtContentToUser);
+  CPDF_AllStates status;
+  status.m_GeneralState = m_pCurStates->m_GeneralState;
+  status.m_GraphState = m_pCurStates->m_GraphState;
+  status.m_ColorState = m_pCurStates->m_ColorState;
+  status.m_TextState = m_pCurStates->m_TextState;
+  pFormObj->m_pForm->ParseContent(&status, nullptr, nullptr, m_Level + 1);
+  if (!m_pObjectHolder->BackgroundAlphaNeeded() &&
+      pFormObj->m_pForm->BackgroundAlphaNeeded()) {
+    m_pObjectHolder->SetBackgroundAlphaNeeded(TRUE);
+  }
+  pFormObj->CalcBoundingBox();
+  SetGraphicStates(pFormObj.get(), true, true, true);
+  m_pObjectHolder->GetPageObjectList()->push_back(std::move(pFormObj));
+}
+
+CPDF_ImageObject* CPDF_StreamContentParser::AddImage(UniqueStream pStream) {
+  if (!pStream)
+    return nullptr;
+
+  auto pImageObj = pdfium::MakeUnique<CPDF_ImageObject>();
+  pImageObj->SetOwnedImage(
+      pdfium::MakeUnique<CPDF_Image>(m_pDocument, pStream.release(), true));
+
+  return AddImageObject(std::move(pImageObj));
+}
+
+CPDF_ImageObject* CPDF_StreamContentParser::AddImage(uint32_t streamObjNum) {
+  CPDF_Stream* pStream = ToStream(m_pDocument->GetIndirectObject(streamObjNum));
+  if (!pStream)
+    return nullptr;
+
+  auto pImageObj = pdfium::MakeUnique<CPDF_ImageObject>();
+  pImageObj->SetUnownedImage(m_pDocument->LoadImageF(pStream));
+  return AddImageObject(std::move(pImageObj));
+}
+
+CPDF_ImageObject* CPDF_StreamContentParser::AddImage(CPDF_Image* pImage) {
+  if (!pImage)
+    return nullptr;
+
+  auto pImageObj = pdfium::MakeUnique<CPDF_ImageObject>();
+  pImageObj->SetUnownedImage(
+      m_pDocument->GetPageData()->GetImage(pImage->GetStream()));
+
+  return AddImageObject(std::move(pImageObj));
+}
+
+CPDF_ImageObject* CPDF_StreamContentParser::AddImageObject(
+    std::unique_ptr<CPDF_ImageObject> pImageObj) {
+  SetGraphicStates(pImageObj.get(), pImageObj->GetImage()->IsMask(), false,
+                   false);
+
+  CFX_Matrix ImageMatrix = m_pCurStates->m_CTM;
+  ImageMatrix.Concat(m_mtContentToUser);
+  pImageObj->m_Matrix = ImageMatrix;
+  pImageObj->CalcBoundingBox();
+
+  CPDF_ImageObject* pRet = pImageObj.get();
+  m_pObjectHolder->GetPageObjectList()->push_back(std::move(pImageObj));
+  return pRet;
+}
+
+void CPDF_StreamContentParser::Handle_MarkPlace_Dictionary() {}
+
+void CPDF_StreamContentParser::Handle_EndImage() {}
+
+void CPDF_StreamContentParser::Handle_EndMarkedContent() {
+  if (m_CurContentMark)
+    m_CurContentMark.DeleteLastMark();
+}
+
+void CPDF_StreamContentParser::Handle_EndText() {
+  if (m_ClipTextList.empty())
+    return;
+
+  if (TextRenderingModeIsClipMode(m_pCurStates->m_TextState.GetTextMode()))
+    m_pCurStates->m_ClipPath.AppendTexts(&m_ClipTextList);
+
+  m_ClipTextList.clear();
+}
+
+void CPDF_StreamContentParser::Handle_FillPath() {
+  AddPathObject(FXFILL_WINDING, false);
+}
+
+void CPDF_StreamContentParser::Handle_FillPathOld() {
+  AddPathObject(FXFILL_WINDING, false);
+}
+
+void CPDF_StreamContentParser::Handle_EOFillPath() {
+  AddPathObject(FXFILL_ALTERNATE, false);
+}
+
+void CPDF_StreamContentParser::Handle_SetGray_Fill() {
+  FX_FLOAT value = GetNumber(0);
+  CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY);
+  m_pCurStates->m_ColorState.SetFillColor(pCS, &value, 1);
+}
+
+void CPDF_StreamContentParser::Handle_SetGray_Stroke() {
+  FX_FLOAT value = GetNumber(0);
+  CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY);
+  m_pCurStates->m_ColorState.SetStrokeColor(pCS, &value, 1);
+}
+
+void CPDF_StreamContentParser::Handle_SetExtendGraphState() {
+  CFX_ByteString name = GetString(0);
+  CPDF_Dictionary* pGS = ToDictionary(FindResourceObj("ExtGState", name));
+  if (!pGS) {
+    m_bResourceMissing = true;
+    return;
+  }
+  m_pCurStates->ProcessExtGS(pGS, this);
+}
+
+void CPDF_StreamContentParser::Handle_ClosePath() {
+  if (m_PathPointCount == 0) {
+    return;
+  }
+  if (m_PathStartX != m_PathCurrentX || m_PathStartY != m_PathCurrentY) {
+    AddPathPoint(m_PathStartX, m_PathStartY, FXPT_LINETO | FXPT_CLOSEFIGURE);
+  } else if (m_pPathPoints[m_PathPointCount - 1].m_Flag != FXPT_MOVETO) {
+    m_pPathPoints[m_PathPointCount - 1].m_Flag |= FXPT_CLOSEFIGURE;
+  }
+}
+
+void CPDF_StreamContentParser::Handle_SetFlat() {
+  m_pCurStates->m_GeneralState.SetFlatness(GetNumber(0));
+}
+
+void CPDF_StreamContentParser::Handle_BeginImageData() {}
+
+void CPDF_StreamContentParser::Handle_SetLineJoin() {
+  m_pCurStates->m_GraphState.SetLineJoin(
+      static_cast<CFX_GraphStateData::LineJoin>(GetInteger(0)));
+}
+
+void CPDF_StreamContentParser::Handle_SetLineCap() {
+  m_pCurStates->m_GraphState.SetLineCap(
+      static_cast<CFX_GraphStateData::LineCap>(GetInteger(0)));
+}
+
+void CPDF_StreamContentParser::Handle_SetCMYKColor_Fill() {
+  if (m_ParamCount != 4)
+    return;
+
+  FX_FLOAT values[4];
+  for (int i = 0; i < 4; i++) {
+    values[i] = GetNumber(3 - i);
+  }
+  CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK);
+  m_pCurStates->m_ColorState.SetFillColor(pCS, values, 4);
+}
+
+void CPDF_StreamContentParser::Handle_SetCMYKColor_Stroke() {
+  if (m_ParamCount != 4)
+    return;
+
+  FX_FLOAT values[4];
+  for (int i = 0; i < 4; i++) {
+    values[i] = GetNumber(3 - i);
+  }
+  CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK);
+  m_pCurStates->m_ColorState.SetStrokeColor(pCS, values, 4);
+}
+
+void CPDF_StreamContentParser::Handle_LineTo() {
+  if (m_ParamCount != 2)
+    return;
+
+  AddPathPoint(GetNumber(1), GetNumber(0), FXPT_LINETO);
+}
+
+void CPDF_StreamContentParser::Handle_MoveTo() {
+  if (m_ParamCount != 2)
+    return;
+
+  AddPathPoint(GetNumber(1), GetNumber(0), FXPT_MOVETO);
+  ParsePathObject();
+}
+
+void CPDF_StreamContentParser::Handle_SetMiterLimit() {
+  m_pCurStates->m_GraphState.SetMiterLimit(GetNumber(0));
+}
+
+void CPDF_StreamContentParser::Handle_MarkPlace() {}
+
+void CPDF_StreamContentParser::Handle_EndPath() {
+  AddPathObject(0, false);
+}
+
+void CPDF_StreamContentParser::Handle_SaveGraphState() {
+  std::unique_ptr<CPDF_AllStates> pStates(new CPDF_AllStates);
+  pStates->Copy(*m_pCurStates);
+  m_StateStack.push_back(std::move(pStates));
+}
+
+void CPDF_StreamContentParser::Handle_RestoreGraphState() {
+  if (m_StateStack.empty())
+    return;
+  std::unique_ptr<CPDF_AllStates> pStates = std::move(m_StateStack.back());
+  m_StateStack.pop_back();
+  m_pCurStates->Copy(*pStates);
+}
+
+void CPDF_StreamContentParser::Handle_Rectangle() {
+  FX_FLOAT x = GetNumber(3), y = GetNumber(2);
+  FX_FLOAT w = GetNumber(1), h = GetNumber(0);
+  AddPathRect(x, y, w, h);
+}
+
+void CPDF_StreamContentParser::AddPathRect(FX_FLOAT x,
+                                           FX_FLOAT y,
+                                           FX_FLOAT w,
+                                           FX_FLOAT h) {
+  AddPathPoint(x, y, FXPT_MOVETO);
+  AddPathPoint(x + w, y, FXPT_LINETO);
+  AddPathPoint(x + w, y + h, FXPT_LINETO);
+  AddPathPoint(x, y + h, FXPT_LINETO);
+  AddPathPoint(x, y, FXPT_LINETO | FXPT_CLOSEFIGURE);
+}
+
+void CPDF_StreamContentParser::Handle_SetRGBColor_Fill() {
+  if (m_ParamCount != 3)
+    return;
+
+  FX_FLOAT values[3];
+  for (int i = 0; i < 3; i++) {
+    values[i] = GetNumber(2 - i);
+  }
+  CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB);
+  m_pCurStates->m_ColorState.SetFillColor(pCS, values, 3);
+}
+
+void CPDF_StreamContentParser::Handle_SetRGBColor_Stroke() {
+  if (m_ParamCount != 3)
+    return;
+
+  FX_FLOAT values[3];
+  for (int i = 0; i < 3; i++) {
+    values[i] = GetNumber(2 - i);
+  }
+  CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB);
+  m_pCurStates->m_ColorState.SetStrokeColor(pCS, values, 3);
+}
+
+void CPDF_StreamContentParser::Handle_SetRenderIntent() {}
+
+void CPDF_StreamContentParser::Handle_CloseStrokePath() {
+  Handle_ClosePath();
+  AddPathObject(0, true);
+}
+
+void CPDF_StreamContentParser::Handle_StrokePath() {
+  AddPathObject(0, true);
+}
+
+void CPDF_StreamContentParser::Handle_SetColor_Fill() {
+  FX_FLOAT values[4];
+  int nargs = m_ParamCount;
+  if (nargs > 4) {
+    nargs = 4;
+  }
+  for (int i = 0; i < nargs; i++) {
+    values[i] = GetNumber(nargs - i - 1);
+  }
+  m_pCurStates->m_ColorState.SetFillColor(nullptr, values, nargs);
+}
+
+void CPDF_StreamContentParser::Handle_SetColor_Stroke() {
+  FX_FLOAT values[4];
+  int nargs = m_ParamCount;
+  if (nargs > 4) {
+    nargs = 4;
+  }
+  for (int i = 0; i < nargs; i++) {
+    values[i] = GetNumber(nargs - i - 1);
+  }
+  m_pCurStates->m_ColorState.SetStrokeColor(nullptr, values, nargs);
+}
+
+void CPDF_StreamContentParser::Handle_SetColorPS_Fill() {
+  CPDF_Object* pLastParam = GetObject(0);
+  if (!pLastParam) {
+    return;
+  }
+  uint32_t nargs = m_ParamCount;
+  uint32_t nvalues = nargs;
+  if (pLastParam->IsName())
+    nvalues--;
+  FX_FLOAT* values = nullptr;
+  if (nvalues) {
+    values = FX_Alloc(FX_FLOAT, nvalues);
+    for (uint32_t i = 0; i < nvalues; i++) {
+      values[i] = GetNumber(nargs - i - 1);
+    }
+  }
+  if (nvalues != nargs) {
+    CPDF_Pattern* pPattern = FindPattern(GetString(0), false);
+    if (pPattern) {
+      m_pCurStates->m_ColorState.SetFillPattern(pPattern, values, nvalues);
+    }
+  } else {
+    m_pCurStates->m_ColorState.SetFillColor(nullptr, values, nvalues);
+  }
+  FX_Free(values);
+}
+
+void CPDF_StreamContentParser::Handle_SetColorPS_Stroke() {
+  CPDF_Object* pLastParam = GetObject(0);
+  if (!pLastParam) {
+    return;
+  }
+  int nargs = m_ParamCount;
+  int nvalues = nargs;
+  if (pLastParam->IsName())
+    nvalues--;
+
+  FX_FLOAT* values = nullptr;
+  if (nvalues) {
+    values = FX_Alloc(FX_FLOAT, nvalues);
+    for (int i = 0; i < nvalues; i++) {
+      values[i] = GetNumber(nargs - i - 1);
+    }
+  }
+  if (nvalues != nargs) {
+    CPDF_Pattern* pPattern = FindPattern(GetString(0), false);
+    if (pPattern) {
+      m_pCurStates->m_ColorState.SetStrokePattern(pPattern, values, nvalues);
+    }
+  } else {
+    m_pCurStates->m_ColorState.SetStrokeColor(nullptr, values, nvalues);
+  }
+  FX_Free(values);
+}
+
+void CPDF_StreamContentParser::Handle_ShadeFill() {
+  CPDF_Pattern* pPattern = FindPattern(GetString(0), true);
+  if (!pPattern)
+    return;
+
+  CPDF_ShadingPattern* pShading = pPattern->AsShadingPattern();
+  if (!pShading)
+    return;
+
+  if (!pShading->IsShadingObject() || !pShading->Load())
+    return;
+
+  std::unique_ptr<CPDF_ShadingObject> pObj(new CPDF_ShadingObject);
+  pObj->m_pShading = pShading;
+  SetGraphicStates(pObj.get(), false, false, false);
+  pObj->m_Matrix = m_pCurStates->m_CTM;
+  pObj->m_Matrix.Concat(m_mtContentToUser);
+  CFX_FloatRect bbox =
+      pObj->m_ClipPath ? pObj->m_ClipPath.GetClipBox() : m_BBox;
+  if (pShading->IsMeshShading())
+    bbox.Intersect(GetShadingBBox(pShading, pObj->m_Matrix));
+  pObj->m_Left = bbox.left;
+  pObj->m_Right = bbox.right;
+  pObj->m_Top = bbox.top;
+  pObj->m_Bottom = bbox.bottom;
+  m_pObjectHolder->GetPageObjectList()->push_back(std::move(pObj));
+}
+
+void CPDF_StreamContentParser::Handle_SetCharSpace() {
+  m_pCurStates->m_TextState.SetCharSpace(GetNumber(0));
+}
+
+void CPDF_StreamContentParser::Handle_MoveTextPoint() {
+  m_pCurStates->m_TextLineX += GetNumber(1);
+  m_pCurStates->m_TextLineY += GetNumber(0);
+  m_pCurStates->m_TextX = m_pCurStates->m_TextLineX;
+  m_pCurStates->m_TextY = m_pCurStates->m_TextLineY;
+}
+
+void CPDF_StreamContentParser::Handle_MoveTextPoint_SetLeading() {
+  Handle_MoveTextPoint();
+  m_pCurStates->m_TextLeading = -GetNumber(0);
+}
+
+void CPDF_StreamContentParser::Handle_SetFont() {
+  FX_FLOAT fs = GetNumber(0);
+  if (fs == 0) {
+    fs = m_DefFontSize;
+  }
+  m_pCurStates->m_TextState.SetFontSize(fs);
+  CPDF_Font* pFont = FindFont(GetString(1));
+  if (pFont) {
+    m_pCurStates->m_TextState.SetFont(pFont);
+  }
+}
+
+CPDF_Object* CPDF_StreamContentParser::FindResourceObj(
+    const CFX_ByteString& type,
+    const CFX_ByteString& name) {
+  if (!m_pResources)
+    return nullptr;
+  CPDF_Dictionary* pDict = m_pResources->GetDictFor(type);
+  if (pDict)
+    return pDict->GetDirectObjectFor(name);
+  if (m_pResources == m_pPageResources || !m_pPageResources)
+    return nullptr;
+
+  CPDF_Dictionary* pPageDict = m_pPageResources->GetDictFor(type);
+  return pPageDict ? pPageDict->GetDirectObjectFor(name) : nullptr;
+}
+
+CPDF_Font* CPDF_StreamContentParser::FindFont(const CFX_ByteString& name) {
+  CPDF_Dictionary* pFontDict = ToDictionary(FindResourceObj("Font", name));
+  if (!pFontDict) {
+    m_bResourceMissing = true;
+    return CPDF_Font::GetStockFont(m_pDocument, "Helvetica");
+  }
+
+  CPDF_Font* pFont = m_pDocument->LoadFont(pFontDict);
+  if (pFont && pFont->IsType3Font()) {
+    pFont->AsType3Font()->SetPageResources(m_pResources);
+    pFont->AsType3Font()->CheckType3FontMetrics();
+  }
+  return pFont;
+}
+
+CPDF_ColorSpace* CPDF_StreamContentParser::FindColorSpace(
+    const CFX_ByteString& name) {
+  if (name == "Pattern") {
+    return CPDF_ColorSpace::GetStockCS(PDFCS_PATTERN);
+  }
+  if (name == "DeviceGray" || name == "DeviceCMYK" || name == "DeviceRGB") {
+    CFX_ByteString defname = "Default";
+    defname += name.Mid(7);
+    CPDF_Object* pDefObj = FindResourceObj("ColorSpace", defname);
+    if (!pDefObj) {
+      if (name == "DeviceGray") {
+        return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY);
+      }
+      if (name == "DeviceRGB") {
+        return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB);
+      }
+      return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK);
+    }
+    return m_pDocument->LoadColorSpace(pDefObj);
+  }
+  CPDF_Object* pCSObj = FindResourceObj("ColorSpace", name);
+  if (!pCSObj) {
+    m_bResourceMissing = true;
+    return nullptr;
+  }
+  return m_pDocument->LoadColorSpace(pCSObj);
+}
+
+CPDF_Pattern* CPDF_StreamContentParser::FindPattern(const CFX_ByteString& name,
+                                                    bool bShading) {
+  CPDF_Object* pPattern =
+      FindResourceObj(bShading ? "Shading" : "Pattern", name);
+  if (!pPattern || (!pPattern->IsDictionary() && !pPattern->IsStream())) {
+    m_bResourceMissing = true;
+    return nullptr;
+  }
+  return m_pDocument->LoadPattern(pPattern, bShading,
+                                  m_pCurStates->m_ParentMatrix);
+}
+
+void CPDF_StreamContentParser::ConvertTextSpace(FX_FLOAT& x, FX_FLOAT& y) {
+  m_pCurStates->m_TextMatrix.Transform(x, y, x, y);
+  ConvertUserSpace(x, y);
+}
+
+void CPDF_StreamContentParser::ConvertUserSpace(FX_FLOAT& x, FX_FLOAT& y) {
+  m_pCurStates->m_CTM.Transform(x, y, x, y);
+  m_mtContentToUser.Transform(x, y, x, y);
+}
+
+void CPDF_StreamContentParser::AddTextObject(CFX_ByteString* pStrs,
+                                             FX_FLOAT fInitKerning,
+                                             FX_FLOAT* pKerning,
+                                             int nsegs) {
+  CPDF_Font* pFont = m_pCurStates->m_TextState.GetFont();
+  if (!pFont) {
+    return;
+  }
+  if (fInitKerning != 0) {
+    if (!pFont->IsVertWriting()) {
+      m_pCurStates->m_TextX -=
+          (fInitKerning * m_pCurStates->m_TextState.GetFontSize()) / 1000;
+    } else {
+      m_pCurStates->m_TextY -=
+          (fInitKerning * m_pCurStates->m_TextState.GetFontSize()) / 1000;
+    }
+  }
+  if (nsegs == 0) {
+    return;
+  }
+  const TextRenderingMode text_mode =
+      pFont->IsType3Font() ? TextRenderingMode::MODE_FILL
+                           : m_pCurStates->m_TextState.GetTextMode();
+  {
+    std::unique_ptr<CPDF_TextObject> pText(new CPDF_TextObject);
+    m_pLastTextObject = pText.get();
+    SetGraphicStates(m_pLastTextObject, true, true, true);
+    if (TextRenderingModeIsStrokeMode(text_mode)) {
+      FX_FLOAT* pCTM = pText->m_TextState.GetMutableCTM();
+      pCTM[0] = m_pCurStates->m_CTM.a;
+      pCTM[1] = m_pCurStates->m_CTM.c;
+      pCTM[2] = m_pCurStates->m_CTM.b;
+      pCTM[3] = m_pCurStates->m_CTM.d;
+    }
+    pText->SetSegments(pStrs, pKerning, nsegs);
+    pText->m_PosX = m_pCurStates->m_TextX;
+    pText->m_PosY = m_pCurStates->m_TextY + m_pCurStates->m_TextRise;
+    ConvertTextSpace(pText->m_PosX, pText->m_PosY);
+    FX_FLOAT x_advance;
+    FX_FLOAT y_advance;
+    pText->CalcPositionData(&x_advance, &y_advance,
+                            m_pCurStates->m_TextHorzScale);
+    m_pCurStates->m_TextX += x_advance;
+    m_pCurStates->m_TextY += y_advance;
+    if (TextRenderingModeIsClipMode(text_mode)) {
+      m_ClipTextList.push_back(
+          std::unique_ptr<CPDF_TextObject>(pText->Clone()));
+    }
+    m_pObjectHolder->GetPageObjectList()->push_back(std::move(pText));
+  }
+  if (pKerning && pKerning[nsegs - 1] != 0) {
+    if (!pFont->IsVertWriting()) {
+      m_pCurStates->m_TextX -=
+          (pKerning[nsegs - 1] * m_pCurStates->m_TextState.GetFontSize()) /
+          1000;
+    } else {
+      m_pCurStates->m_TextY -=
+          (pKerning[nsegs - 1] * m_pCurStates->m_TextState.GetFontSize()) /
+          1000;
+    }
+  }
+}
+
+void CPDF_StreamContentParser::Handle_ShowText() {
+  CFX_ByteString str = GetString(0);
+  if (str.IsEmpty()) {
+    return;
+  }
+  AddTextObject(&str, 0, nullptr, 1);
+}
+
+void CPDF_StreamContentParser::Handle_ShowText_Positioning() {
+  CPDF_Array* pArray = ToArray(GetObject(0));
+  if (!pArray)
+    return;
+
+  size_t n = pArray->GetCount();
+  size_t nsegs = 0;
+  for (size_t i = 0; i < n; i++) {
+    if (pArray->GetDirectObjectAt(i)->IsString())
+      nsegs++;
+  }
+  if (nsegs == 0) {
+    for (size_t i = 0; i < n; i++) {
+      m_pCurStates->m_TextX -=
+          (pArray->GetNumberAt(i) * m_pCurStates->m_TextState.GetFontSize()) /
+          1000;
+    }
+    return;
+  }
+  CFX_ByteString* pStrs = new CFX_ByteString[nsegs];
+  FX_FLOAT* pKerning = FX_Alloc(FX_FLOAT, nsegs);
+  size_t iSegment = 0;
+  FX_FLOAT fInitKerning = 0;
+  for (size_t i = 0; i < n; i++) {
+    CPDF_Object* pObj = pArray->GetDirectObjectAt(i);
+    if (pObj->IsString()) {
+      CFX_ByteString str = pObj->GetString();
+      if (str.IsEmpty()) {
+        continue;
+      }
+      pStrs[iSegment] = str;
+      pKerning[iSegment++] = 0;
+    } else {
+      FX_FLOAT num = pObj ? pObj->GetNumber() : 0;
+      if (iSegment == 0) {
+        fInitKerning += num;
+      } else {
+        pKerning[iSegment - 1] += num;
+      }
+    }
+  }
+  AddTextObject(pStrs, fInitKerning, pKerning, iSegment);
+  delete[] pStrs;
+  FX_Free(pKerning);
+}
+
+void CPDF_StreamContentParser::Handle_SetTextLeading() {
+  m_pCurStates->m_TextLeading = GetNumber(0);
+}
+
+void CPDF_StreamContentParser::Handle_SetTextMatrix() {
+  m_pCurStates->m_TextMatrix.Set(GetNumber(5), GetNumber(4), GetNumber(3),
+                                 GetNumber(2), GetNumber(1), GetNumber(0));
+  OnChangeTextMatrix();
+  m_pCurStates->m_TextX = 0;
+  m_pCurStates->m_TextY = 0;
+  m_pCurStates->m_TextLineX = 0;
+  m_pCurStates->m_TextLineY = 0;
+}
+
+void CPDF_StreamContentParser::OnChangeTextMatrix() {
+  CFX_Matrix text_matrix(m_pCurStates->m_TextHorzScale, 0.0f, 0.0f, 1.0f, 0.0f,
+                         0.0f);
+  text_matrix.Concat(m_pCurStates->m_TextMatrix);
+  text_matrix.Concat(m_pCurStates->m_CTM);
+  text_matrix.Concat(m_mtContentToUser);
+  FX_FLOAT* pTextMatrix = m_pCurStates->m_TextState.GetMutableMatrix();
+  pTextMatrix[0] = text_matrix.a;
+  pTextMatrix[1] = text_matrix.c;
+  pTextMatrix[2] = text_matrix.b;
+  pTextMatrix[3] = text_matrix.d;
+}
+
+void CPDF_StreamContentParser::Handle_SetTextRenderMode() {
+  TextRenderingMode mode;
+  if (SetTextRenderingModeFromInt(GetInteger(0), &mode))
+    m_pCurStates->m_TextState.SetTextMode(mode);
+}
+
+void CPDF_StreamContentParser::Handle_SetTextRise() {
+  m_pCurStates->m_TextRise = GetNumber(0);
+}
+
+void CPDF_StreamContentParser::Handle_SetWordSpace() {
+  m_pCurStates->m_TextState.SetWordSpace(GetNumber(0));
+}
+
+void CPDF_StreamContentParser::Handle_SetHorzScale() {
+  if (m_ParamCount != 1) {
+    return;
+  }
+  m_pCurStates->m_TextHorzScale = GetNumber(0) / 100;
+  OnChangeTextMatrix();
+}
+
+void CPDF_StreamContentParser::Handle_MoveToNextLine() {
+  m_pCurStates->m_TextLineY -= m_pCurStates->m_TextLeading;
+  m_pCurStates->m_TextX = m_pCurStates->m_TextLineX;
+  m_pCurStates->m_TextY = m_pCurStates->m_TextLineY;
+}
+
+void CPDF_StreamContentParser::Handle_CurveTo_23() {
+  AddPathPoint(m_PathCurrentX, m_PathCurrentY, FXPT_BEZIERTO);
+  AddPathPoint(GetNumber(3), GetNumber(2), FXPT_BEZIERTO);
+  AddPathPoint(GetNumber(1), GetNumber(0), FXPT_BEZIERTO);
+}
+
+void CPDF_StreamContentParser::Handle_SetLineWidth() {
+  m_pCurStates->m_GraphState.SetLineWidth(GetNumber(0));
+}
+
+void CPDF_StreamContentParser::Handle_Clip() {
+  m_PathClipType = FXFILL_WINDING;
+}
+
+void CPDF_StreamContentParser::Handle_EOClip() {
+  m_PathClipType = FXFILL_ALTERNATE;
+}
+
+void CPDF_StreamContentParser::Handle_CurveTo_13() {
+  AddPathPoint(GetNumber(3), GetNumber(2), FXPT_BEZIERTO);
+  AddPathPoint(GetNumber(1), GetNumber(0), FXPT_BEZIERTO);
+  AddPathPoint(GetNumber(1), GetNumber(0), FXPT_BEZIERTO);
+}
+
+void CPDF_StreamContentParser::Handle_NextLineShowText() {
+  Handle_MoveToNextLine();
+  Handle_ShowText();
+}
+
+void CPDF_StreamContentParser::Handle_NextLineShowText_Space() {
+  m_pCurStates->m_TextState.SetWordSpace(GetNumber(2));
+  m_pCurStates->m_TextState.SetCharSpace(GetNumber(1));
+  Handle_NextLineShowText();
+}
+
+void CPDF_StreamContentParser::Handle_Invalid() {}
+
+void CPDF_StreamContentParser::AddPathPoint(FX_FLOAT x, FX_FLOAT y, int flag) {
+  m_PathCurrentX = x;
+  m_PathCurrentY = y;
+  if (flag == FXPT_MOVETO) {
+    m_PathStartX = x;
+    m_PathStartY = y;
+    if (m_PathPointCount &&
+        m_pPathPoints[m_PathPointCount - 1].m_Flag == FXPT_MOVETO) {
+      m_pPathPoints[m_PathPointCount - 1].m_PointX = x;
+      m_pPathPoints[m_PathPointCount - 1].m_PointY = y;
+      return;
+    }
+  } else if (m_PathPointCount == 0) {
+    return;
+  }
+  m_PathPointCount++;
+  if (m_PathPointCount > m_PathAllocSize) {
+    int newsize = m_PathPointCount + 256;
+    FX_PATHPOINT* pNewPoints = FX_Alloc(FX_PATHPOINT, newsize);
+    if (m_PathAllocSize) {
+      FXSYS_memcpy(pNewPoints, m_pPathPoints,
+                   m_PathAllocSize * sizeof(FX_PATHPOINT));
+      FX_Free(m_pPathPoints);
+    }
+    m_pPathPoints = pNewPoints;
+    m_PathAllocSize = newsize;
+  }
+  m_pPathPoints[m_PathPointCount - 1].m_Flag = flag;
+  m_pPathPoints[m_PathPointCount - 1].m_PointX = x;
+  m_pPathPoints[m_PathPointCount - 1].m_PointY = y;
+}
+
+void CPDF_StreamContentParser::AddPathObject(int FillType, bool bStroke) {
+  int PathPointCount = m_PathPointCount;
+  uint8_t PathClipType = m_PathClipType;
+  m_PathPointCount = 0;
+  m_PathClipType = 0;
+  if (PathPointCount <= 1) {
+    if (PathPointCount && PathClipType) {
+      CPDF_Path path;
+      path.AppendRect(0, 0, 0, 0);
+      m_pCurStates->m_ClipPath.AppendPath(path, FXFILL_WINDING, TRUE);
+    }
+    return;
+  }
+  if (PathPointCount &&
+      m_pPathPoints[PathPointCount - 1].m_Flag == FXPT_MOVETO) {
+    PathPointCount--;
+  }
+  CPDF_Path Path;
+  Path.SetPointCount(PathPointCount);
+  FXSYS_memcpy(Path.GetMutablePoints(), m_pPathPoints,
+               sizeof(FX_PATHPOINT) * PathPointCount);
+  CFX_Matrix matrix = m_pCurStates->m_CTM;
+  matrix.Concat(m_mtContentToUser);
+  if (bStroke || FillType) {
+    std::unique_ptr<CPDF_PathObject> pPathObj(new CPDF_PathObject);
+    pPathObj->m_bStroke = bStroke;
+    pPathObj->m_FillType = FillType;
+    pPathObj->m_Path = Path;
+    pPathObj->m_Matrix = matrix;
+    SetGraphicStates(pPathObj.get(), true, false, true);
+    pPathObj->CalcBoundingBox();
+    m_pObjectHolder->GetPageObjectList()->push_back(std::move(pPathObj));
+  }
+  if (PathClipType) {
+    if (!matrix.IsIdentity()) {
+      Path.Transform(&matrix);
+      matrix.SetIdentity();
+    }
+    m_pCurStates->m_ClipPath.AppendPath(Path, PathClipType, TRUE);
+  }
+}
+
+uint32_t CPDF_StreamContentParser::Parse(const uint8_t* pData,
+                                         uint32_t dwSize,
+                                         uint32_t max_cost) {
+  if (m_Level > kMaxFormLevel)
+    return dwSize;
+
+  uint32_t InitObjCount = m_pObjectHolder->GetPageObjectList()->size();
+  CPDF_StreamParser syntax(pData, dwSize, m_pDocument->GetByteStringPool());
+  CPDF_StreamParserAutoClearer auto_clearer(&m_pSyntax, &syntax);
+  while (1) {
+    uint32_t cost = m_pObjectHolder->GetPageObjectList()->size() - InitObjCount;
+    if (max_cost && cost >= max_cost) {
+      break;
+    }
+    switch (syntax.ParseNextElement()) {
+      case CPDF_StreamParser::EndOfData:
+        return m_pSyntax->GetPos();
+      case CPDF_StreamParser::Keyword:
+        OnOperator((char*)syntax.GetWordBuf());
+        ClearAllParams();
+        break;
+      case CPDF_StreamParser::Number:
+        AddNumberParam((char*)syntax.GetWordBuf(), syntax.GetWordSize());
+        break;
+      case CPDF_StreamParser::Name:
+        AddNameParam((const FX_CHAR*)syntax.GetWordBuf() + 1,
+                     syntax.GetWordSize() - 1);
+        break;
+      default:
+        AddObjectParam(syntax.GetObject());
+    }
+  }
+  return m_pSyntax->GetPos();
+}
+
+void CPDF_StreamContentParser::ParsePathObject() {
+  FX_FLOAT params[6] = {};
+  int nParams = 0;
+  int last_pos = m_pSyntax->GetPos();
+  while (1) {
+    CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
+    FX_BOOL bProcessed = TRUE;
+    switch (type) {
+      case CPDF_StreamParser::EndOfData:
+        return;
+      case CPDF_StreamParser::Keyword: {
+        int len = m_pSyntax->GetWordSize();
+        if (len == 1) {
+          switch (m_pSyntax->GetWordBuf()[0]) {
+            case kPathOperatorSubpath:
+              AddPathPoint(params[0], params[1], FXPT_MOVETO);
+              nParams = 0;
+              break;
+            case kPathOperatorLine:
+              AddPathPoint(params[0], params[1], FXPT_LINETO);
+              nParams = 0;
+              break;
+            case kPathOperatorCubicBezier1:
+              AddPathPoint(params[0], params[1], FXPT_BEZIERTO);
+              AddPathPoint(params[2], params[3], FXPT_BEZIERTO);
+              AddPathPoint(params[4], params[5], FXPT_BEZIERTO);
+              nParams = 0;
+              break;
+            case kPathOperatorCubicBezier2:
+              AddPathPoint(m_PathCurrentX, m_PathCurrentY, FXPT_BEZIERTO);
+              AddPathPoint(params[0], params[1], FXPT_BEZIERTO);
+              AddPathPoint(params[2], params[3], FXPT_BEZIERTO);
+              nParams = 0;
+              break;
+            case kPathOperatorCubicBezier3:
+              AddPathPoint(params[0], params[1], FXPT_BEZIERTO);
+              AddPathPoint(params[2], params[3], FXPT_BEZIERTO);
+              AddPathPoint(params[2], params[3], FXPT_BEZIERTO);
+              nParams = 0;
+              break;
+            case kPathOperatorClosePath:
+              Handle_ClosePath();
+              nParams = 0;
+              break;
+            default:
+              bProcessed = FALSE;
+              break;
+          }
+        } else if (len == 2) {
+          if (m_pSyntax->GetWordBuf()[0] == kPathOperatorRectangle[0] &&
+              m_pSyntax->GetWordBuf()[1] == kPathOperatorRectangle[1]) {
+            AddPathRect(params[0], params[1], params[2], params[3]);
+            nParams = 0;
+          } else {
+            bProcessed = FALSE;
+          }
+        } else {
+          bProcessed = FALSE;
+        }
+        if (bProcessed) {
+          last_pos = m_pSyntax->GetPos();
+        }
+        break;
+      }
+      case CPDF_StreamParser::Number: {
+        if (nParams == 6)
+          break;
+
+        int value;
+        bool bInteger = FX_atonum(
+            CFX_ByteStringC(m_pSyntax->GetWordBuf(), m_pSyntax->GetWordSize()),
+            &value);
+        params[nParams++] = bInteger ? (FX_FLOAT)value : *(FX_FLOAT*)&value;
+        break;
+      }
+      default:
+        bProcessed = FALSE;
+    }
+    if (!bProcessed) {
+      m_pSyntax->SetPos(last_pos);
+      return;
+    }
+  }
+}
diff --git a/core/fpdfapi/page/cpdf_streamcontentparser.h b/core/fpdfapi/page/cpdf_streamcontentparser.h
new file mode 100644
index 0000000000..58008da96a
--- /dev/null
+++ b/core/fpdfapi/page/cpdf_streamcontentparser.h
@@ -0,0 +1,225 @@
+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef CORE_FPDFAPI_PAGE_CPDF_STREAMCONTENTPARSER_H_
+#define CORE_FPDFAPI_PAGE_CPDF_STREAMCONTENTPARSER_H_
+
+#include <memory>
+#include <unordered_map>
+#include <vector>
+
+#include "core/fpdfapi/page/cpdf_contentmark.h"
+#include "core/fpdfapi/parser/cpdf_stream.h"
+#include "core/fxcrt/fx_string.h"
+#include "core/fxge/cfx_pathdata.h"
+
+class CPDF_AllStates;
+class CPDF_Dictionary;
+class CPDF_Document;
+class CPDF_Font;
+class CPDF_Image;
+class CPDF_ImageObject;
+class CPDF_PageObject;
+class CPDF_PageObjectHolder;
+class CPDF_StreamParser;
+class CPDF_TextObject;
+class CPDF_ColorSpace;
+class CPDF_Pattern;
+
+class CPDF_StreamContentParser {
+ public:
+  CPDF_StreamContentParser(CPDF_Document* pDoc,
+                           CPDF_Dictionary* pPageResources,
+                           CPDF_Dictionary* pParentResources,
+                           const CFX_Matrix* pmtContentToUser,
+                           CPDF_PageObjectHolder* pObjectHolder,
+                           CPDF_Dictionary* pResources,
+                           CFX_FloatRect* pBBox,
+                           CPDF_AllStates* pAllStates,
+                           int level);
+  ~CPDF_StreamContentParser();
+
+  uint32_t Parse(const uint8_t* pData, uint32_t dwSize, uint32_t max_cost);
+  CPDF_PageObjectHolder* GetPageObjectHolder() const { return m_pObjectHolder; }
+  CPDF_AllStates* GetCurStates() const { return m_pCurStates.get(); }
+  bool IsColored() const { return m_bColored; }
+  const FX_FLOAT* GetType3Data() const { return m_Type3Data; }
+  CPDF_Font* FindFont(const CFX_ByteString& name);
+
+ private:
+  struct ContentParam {
+    enum Type { OBJECT = 0, NUMBER, NAME };
+    Type m_Type;
+    union {
+      struct {
+        bool m_bInteger;
+        union {
+          int m_Integer;
+          FX_FLOAT m_Float;
+        };
+      } m_Number;
+      CPDF_Object* m_pObject;
+      struct {
+        int m_Len;
+        char m_Buffer[32];
+      } m_Name;
+    };
+  };
+
+  static const int kParamBufSize = 16;
+
+  using OpCodes =
+      std::unordered_map<uint32_t, void (CPDF_StreamContentParser::*)()>;
+  static OpCodes InitializeOpCodes();
+
+  void AddNumberParam(const FX_CHAR* str, int len);
+  void AddObjectParam(CPDF_Object* pObj);
+  void AddNameParam(const FX_CHAR* name, int size);
+  int GetNextParamPos();
+  void ClearAllParams();
+  CPDF_Object* GetObject(uint32_t index);
+  CFX_ByteString GetString(uint32_t index);
+  FX_FLOAT GetNumber(uint32_t index);
+  int GetInteger(uint32_t index) { return (int32_t)(GetNumber(index)); }
+  void OnOperator(const FX_CHAR* op);
+  void AddTextObject(CFX_ByteString* pText,
+                     FX_FLOAT fInitKerning,
+                     FX_FLOAT* pKerning,
+                     int count);
+
+  void ConvertUserSpace(FX_FLOAT& x, FX_FLOAT& y);
+  void ConvertTextSpace(FX_FLOAT& x, FX_FLOAT& y);
+  void OnChangeTextMatrix();
+  void ParsePathObject();
+  void AddPathPoint(FX_FLOAT x, FX_FLOAT y, int flag);
+  void AddPathRect(FX_FLOAT x, FX_FLOAT y, FX_FLOAT w, FX_FLOAT h);
+  void AddPathObject(int FillType, bool bStroke);
+  CPDF_ImageObject* AddImage(UniqueStream pStream);
+  CPDF_ImageObject* AddImage(uint32_t streamObjNum);
+  CPDF_ImageObject* AddImage(CPDF_Image* pImage);
+
+  void AddForm(CPDF_Stream* pStream);
+  void SetGraphicStates(CPDF_PageObject* pObj,
+                        bool bColor,
+                        bool bText,
+                        bool bGraph);
+  CPDF_ColorSpace* FindColorSpace(const CFX_ByteString& name);
+  CPDF_Pattern* FindPattern(const CFX_ByteString& name, bool bShading);
+  CPDF_Object* FindResourceObj(const CFX_ByteString& type,
+                               const CFX_ByteString& name);
+
+  // Takes ownership of |pImageObj|, returns unowned pointer to it.
+  CPDF_ImageObject* AddImageObject(std::unique_ptr<CPDF_ImageObject> pImageObj);
+
+  void Handle_CloseFillStrokePath();
+  void Handle_FillStrokePath();
+  void Handle_CloseEOFillStrokePath();
+  void Handle_EOFillStrokePath();
+  void Handle_BeginMarkedContent_Dictionary();
+  void Handle_BeginImage();
+  void Handle_BeginMarkedContent();
+  void Handle_BeginText();
+  void Handle_CurveTo_123();
+  void Handle_ConcatMatrix();
+  void Handle_SetColorSpace_Fill();
+  void Handle_SetColorSpace_Stroke();
+  void Handle_SetDash();
+  void Handle_SetCharWidth();
+  void Handle_SetCachedDevice();
+  void Handle_ExecuteXObject();
+  void Handle_MarkPlace_Dictionary();
+  void Handle_EndImage();
+  void Handle_EndMarkedContent();
+  void Handle_EndText();
+  void Handle_FillPath();
+  void Handle_FillPathOld();
+  void Handle_EOFillPath();
+  void Handle_SetGray_Fill();
+  void Handle_SetGray_Stroke();
+  void Handle_SetExtendGraphState();
+  void Handle_ClosePath();
+  void Handle_SetFlat();
+  void Handle_BeginImageData();
+  void Handle_SetLineJoin();
+  void Handle_SetLineCap();
+  void Handle_SetCMYKColor_Fill();
+  void Handle_SetCMYKColor_Stroke();
+  void Handle_LineTo();
+  void Handle_MoveTo();
+  void Handle_SetMiterLimit();
+  void Handle_MarkPlace();
+  void Handle_EndPath();
+  void Handle_SaveGraphState();
+  void Handle_RestoreGraphState();
+  void Handle_Rectangle();
+  void Handle_SetRGBColor_Fill();
+  void Handle_SetRGBColor_Stroke();
+  void Handle_SetRenderIntent();
+  void Handle_CloseStrokePath();
+  void Handle_StrokePath();
+  void Handle_SetColor_Fill();
+  void Handle_SetColor_Stroke();
+  void Handle_SetColorPS_Fill();
+  void Handle_SetColorPS_Stroke();
+  void Handle_ShadeFill();
+  void Handle_SetCharSpace();
+  void Handle_MoveTextPoint();
+  void Handle_MoveTextPoint_SetLeading();
+  void Handle_SetFont();
+  void Handle_ShowText();
+  void Handle_ShowText_Positioning();
+  void Handle_SetTextLeading();
+  void Handle_SetTextMatrix();
+  void Handle_SetTextRenderMode();
+  void Handle_SetTextRise();
+  void Handle_SetWordSpace();
+  void Handle_SetHorzScale();
+  void Handle_MoveToNextLine();
+  void Handle_CurveTo_23();
+  void Handle_SetLineWidth();
+  void Handle_Clip();
+  void Handle_EOClip();
+  void Handle_CurveTo_13();
+  void Handle_NextLineShowText();
+  void Handle_NextLineShowText_Space();
+  void Handle_Invalid();
+
+  CPDF_Document* const m_pDocument;
+  CPDF_Dictionary* m_pPageResources;
+  CPDF_Dictionary* m_pParentResources;
+  CPDF_Dictionary* m_pResources;
+  CPDF_PageObjectHolder* m_pObjectHolder;
+  int m_Level;
+  CFX_Matrix m_mtContentToUser;
+  CFX_FloatRect m_BBox;
+  ContentParam m_ParamBuf[kParamBufSize];
+  uint32_t m_ParamStartPos;
+  uint32_t m_ParamCount;
+  CPDF_StreamParser* m_pSyntax;
+  std::unique_ptr<CPDF_AllStates> m_pCurStates;
+  CPDF_ContentMark m_CurContentMark;
+  std::vector<std::unique_ptr<CPDF_TextObject>> m_ClipTextList;
+  CPDF_TextObject* m_pLastTextObject;
+  FX_FLOAT m_DefFontSize;
+  FX_PATHPOINT* m_pPathPoints;
+  int m_PathPointCount;
+  int m_PathAllocSize;
+  FX_FLOAT m_PathStartX;
+  FX_FLOAT m_PathStartY;
+  FX_FLOAT m_PathCurrentX;
+  FX_FLOAT m_PathCurrentY;
+  uint8_t m_PathClipType;
+  CFX_ByteString m_LastImageName;
+  CPDF_Image* m_pLastImage;
+  CPDF_Dictionary* m_pLastImageDict;
+  CPDF_Dictionary* m_pLastCloneImageDict;
+  bool m_bColored;
+  FX_FLOAT m_Type3Data[6];
+  bool m_bResourceMissing;
+  std::vector<std::unique_ptr<CPDF_AllStates>> m_StateStack;
+};
+
+#endif  // CORE_FPDFAPI_PAGE_CPDF_STREAMCONTENTPARSER_H_
diff --git a/core/fpdfapi/page/fpdf_page_parser.cpp b/core/fpdfapi/page/fpdf_page_parser.cpp
index 5fdca908c8..b6f0bc605c 100644
--- a/core/fpdfapi/page/fpdf_page_parser.cpp
+++ b/core/fpdfapi/page/fpdf_page_parser.cpp
@@ -41,20 +41,6 @@
 
 namespace {
 
-const int kSingleCoordinatePair = 1;
-const int kTensorCoordinatePairs = 16;
-const int kCoonsCoordinatePairs = 12;
-const int kSingleColorPerPatch = 1;
-const int kQuadColorsPerPatch = 4;
-
-const char kPathOperatorSubpath = 'm';
-const char kPathOperatorLine = 'l';
-const char kPathOperatorCubicBezier1 = 'c';
-const char kPathOperatorCubicBezier2 = 'v';
-const char kPathOperatorCubicBezier3 = 'y';
-const char kPathOperatorClosePath = 'h';
-const char kPathOperatorRectangle[] = "re";
-
 struct PDF_AbbrPair {
   const FX_CHAR* abbr;
   const FX_CHAR* full_name;
@@ -81,19 +67,6 @@ struct AbbrReplacementOp {
   CFX_ByteStringC replacement;
 };
 
-class CPDF_StreamParserAutoClearer {
- public:
-  CPDF_StreamParserAutoClearer(CPDF_StreamParser** scoped_variable,
-                               CPDF_StreamParser* new_parser)
-      : scoped_variable_(scoped_variable) {
-    *scoped_variable_ = new_parser;
-  }
-  ~CPDF_StreamParserAutoClearer() { *scoped_variable_ = nullptr; }
-
- private:
-  CPDF_StreamParser** scoped_variable_;
-};
-
 CFX_ByteStringC PDF_FindFullName(const PDF_AbbrPair* table,
                                  size_t count,
                                  const CFX_ByteStringC& abbr) {
@@ -104,68 +77,6 @@ CFX_ByteStringC PDF_FindFullName(const PDF_AbbrPair* table,
                              : CFX_ByteStringC();
 }
 
-CFX_FloatRect GetShadingBBox(CPDF_ShadingPattern* pShading,
-                             const CFX_Matrix& matrix) {
-  ShadingType type = pShading->GetShadingType();
-  CPDF_Stream* pStream = ToStream(pShading->GetShadingObject());
-  CPDF_ColorSpace* pCS = pShading->GetCS();
-  if (!pStream || !pCS)
-    return CFX_FloatRect(0, 0, 0, 0);
-
-  CPDF_MeshStream stream(type, pShading->GetFuncs(), pStream, pCS);
-  if (!stream.Load())
-    return CFX_FloatRect(0, 0, 0, 0);
-
-  CFX_FloatRect rect;
-  bool bStarted = false;
-  bool bGouraud = type == kFreeFormGouraudTriangleMeshShading ||
-                  type == kLatticeFormGouraudTriangleMeshShading;
-
-  int point_count = kSingleCoordinatePair;
-  if (type == kTensorProductPatchMeshShading)
-    point_count = kTensorCoordinatePairs;
-  else if (type == kCoonsPatchMeshShading)
-    point_count = kCoonsCoordinatePairs;
-
-  int color_count = kSingleColorPerPatch;
-  if (type == kCoonsPatchMeshShading || type == kTensorProductPatchMeshShading)
-    color_count = kQuadColorsPerPatch;
-
-  while (!stream.BitStream()->IsEOF()) {
-    uint32_t flag = 0;
-    if (type != kLatticeFormGouraudTriangleMeshShading)
-      flag = stream.GetFlag();
-
-    if (!bGouraud && flag) {
-      point_count -= 4;
-      color_count -= 2;
-    }
-
-    for (int i = 0; i < point_count; i++) {
-      FX_FLOAT x;
-      FX_FLOAT y;
-      stream.GetCoords(x, y);
-      if (bStarted) {
-        rect.UpdateRect(x, y);
-      } else {
-        rect.InitRect(x, y);
-        bStarted = true;
-      }
-    }
-    FX_SAFE_UINT32 nBits = stream.Components();
-    nBits *= stream.ComponentBits();
-    nBits *= color_count;
-    if (!nBits.IsValid())
-      break;
-
-    stream.BitStream()->SkipBits(nBits.ValueOrDie());
-    if (bGouraud)
-      stream.BitStream()->ByteAlign();
-  }
-  rect.Transform(&matrix);
-  return rect;
-}
-
 }  // namespace
 
 CFX_ByteStringC PDF_FindKeyAbbreviationForTesting(const CFX_ByteStringC& abbr) {
@@ -179,1442 +90,6 @@ CFX_ByteStringC PDF_FindValueAbbreviationForTesting(
                           FX_ArraySize(PDF_InlineValueAbbr), abbr);
 }
 
-CPDF_StreamContentParser::CPDF_StreamContentParser(
-    CPDF_Document* pDocument,
-    CPDF_Dictionary* pPageResources,
-    CPDF_Dictionary* pParentResources,
-    const CFX_Matrix* pmtContentToUser,
-    CPDF_PageObjectHolder* pObjHolder,
-    CPDF_Dictionary* pResources,
-    CFX_FloatRect* pBBox,
-    CPDF_AllStates* pStates,
-    int level)
-    : m_pDocument(pDocument),
-      m_pPageResources(pPageResources),
-      m_pParentResources(pParentResources),
-      m_pResources(pResources),
-      m_pObjectHolder(pObjHolder),
-      m_Level(level),
-      m_ParamStartPos(0),
-      m_ParamCount(0),
-      m_pCurStates(new CPDF_AllStates),
-      m_pLastTextObject(nullptr),
-      m_DefFontSize(0),
-      m_pPathPoints(nullptr),
-      m_PathPointCount(0),
-      m_PathAllocSize(0),
-      m_PathCurrentX(0.0f),
-      m_PathCurrentY(0.0f),
-      m_PathClipType(0),
-      m_pLastImage(nullptr),
-      m_pLastImageDict(nullptr),
-      m_pLastCloneImageDict(nullptr),
-      m_bColored(false),
-      m_bResourceMissing(false) {
-  if (pmtContentToUser)
-    m_mtContentToUser = *pmtContentToUser;
-  if (!m_pResources)
-    m_pResources = m_pParentResources;
-  if (!m_pResources)
-    m_pResources = m_pPageResources;
-  if (pBBox)
-    m_BBox = *pBBox;
-  if (pStates) {
-    m_pCurStates->Copy(*pStates);
-  } else {
-    m_pCurStates->m_GeneralState.Emplace();
-    m_pCurStates->m_GraphState.Emplace();
-    m_pCurStates->m_TextState.Emplace();
-    m_pCurStates->m_ColorState.Emplace();
-  }
-  for (size_t i = 0; i < FX_ArraySize(m_Type3Data); ++i) {
-    m_Type3Data[i] = 0.0;
-  }
-}
-
-CPDF_StreamContentParser::~CPDF_StreamContentParser() {
-  ClearAllParams();
-  FX_Free(m_pPathPoints);
-  if (m_pLastImageDict) {
-    m_pLastImageDict->Release();
-  }
-  if (m_pLastCloneImageDict) {
-    m_pLastCloneImageDict->Release();
-  }
-}
-
-int CPDF_StreamContentParser::GetNextParamPos() {
-  if (m_ParamCount == PARAM_BUF_SIZE) {
-    m_ParamStartPos++;
-    if (m_ParamStartPos == PARAM_BUF_SIZE) {
-      m_ParamStartPos = 0;
-    }
-    if (m_ParamBuf[m_ParamStartPos].m_Type == 0) {
-      if (CPDF_Object* pObject = m_ParamBuf[m_ParamStartPos].m_pObject)
-        pObject->Release();
-    }
-    return m_ParamStartPos;
-  }
-  int index = m_ParamStartPos + m_ParamCount;
-  if (index >= PARAM_BUF_SIZE) {
-    index -= PARAM_BUF_SIZE;
-  }
-  m_ParamCount++;
-  return index;
-}
-
-void CPDF_StreamContentParser::AddNameParam(const FX_CHAR* name, int len) {
-  CFX_ByteStringC bsName(name, len);
-  ContentParam& param = m_ParamBuf[GetNextParamPos()];
-  if (len > 32) {
-    param.m_Type = ContentParam::OBJECT;
-    param.m_pObject = new CPDF_Name(
-        m_pDocument->GetByteStringPool()->Intern(PDF_NameDecode(bsName)));
-  } else {
-    param.m_Type = ContentParam::NAME;
-    if (bsName.Find('#') == -1) {
-      FXSYS_memcpy(param.m_Name.m_Buffer, name, len);
-      param.m_Name.m_Len = len;
-    } else {
-      CFX_ByteString str = PDF_NameDecode(bsName);
-      FXSYS_memcpy(param.m_Name.m_Buffer, str.c_str(), str.GetLength());
-      param.m_Name.m_Len = str.GetLength();
-    }
-  }
-}
-
-void CPDF_StreamContentParser::AddNumberParam(const FX_CHAR* str, int len) {
-  ContentParam& param = m_ParamBuf[GetNextParamPos()];
-  param.m_Type = ContentParam::NUMBER;
-  param.m_Number.m_bInteger =
-      FX_atonum(CFX_ByteStringC(str, len), &param.m_Number.m_Integer);
-}
-
-void CPDF_StreamContentParser::AddObjectParam(CPDF_Object* pObj) {
-  ContentParam& param = m_ParamBuf[GetNextParamPos()];
-  param.m_Type = ContentParam::OBJECT;
-  param.m_pObject = pObj;
-}
-
-void CPDF_StreamContentParser::ClearAllParams() {
-  uint32_t index = m_ParamStartPos;
-  for (uint32_t i = 0; i < m_ParamCount; i++) {
-    if (m_ParamBuf[index].m_Type == 0) {
-      if (CPDF_Object* pObject = m_ParamBuf[index].m_pObject)
-        pObject->Release();
-    }
-    index++;
-    if (index == PARAM_BUF_SIZE) {
-      index = 0;
-    }
-  }
-  m_ParamStartPos = 0;
-  m_ParamCount = 0;
-}
-
-CPDF_Object* CPDF_StreamContentParser::GetObject(uint32_t index) {
-  if (index >= m_ParamCount) {
-    return nullptr;
-  }
-  int real_index = m_ParamStartPos + m_ParamCount - index - 1;
-  if (real_index >= PARAM_BUF_SIZE) {
-    real_index -= PARAM_BUF_SIZE;
-  }
-  ContentParam& param = m_ParamBuf[real_index];
-  if (param.m_Type == ContentParam::NUMBER) {
-    CPDF_Number* pNumber = param.m_Number.m_bInteger
-                               ? new CPDF_Number(param.m_Number.m_Integer)
-                               : new CPDF_Number(param.m_Number.m_Float);
-
-    param.m_Type = ContentParam::OBJECT;
-    param.m_pObject = pNumber;
-    return pNumber;
-  }
-  if (param.m_Type == ContentParam::NAME) {
-    CPDF_Name* pName = new CPDF_Name(m_pDocument->GetByteStringPool()->Intern(
-        CFX_ByteString(param.m_Name.m_Buffer, param.m_Name.m_Len)));
-    param.m_Type = ContentParam::OBJECT;
-    param.m_pObject = pName;
-    return pName;
-  }
-  if (param.m_Type == ContentParam::OBJECT) {
-    return param.m_pObject;
-  }
-  ASSERT(FALSE);
-  return nullptr;
-}
-
-CFX_ByteString CPDF_StreamContentParser::GetString(uint32_t index) {
-  if (index >= m_ParamCount) {
-    return CFX_ByteString();
-  }
-  int real_index = m_ParamStartPos + m_ParamCount - index - 1;
-  if (real_index >= PARAM_BUF_SIZE) {
-    real_index -= PARAM_BUF_SIZE;
-  }
-  ContentParam& param = m_ParamBuf[real_index];
-  if (param.m_Type == ContentParam::NAME) {
-    return CFX_ByteString(param.m_Name.m_Buffer, param.m_Name.m_Len);
-  }
-  if (param.m_Type == 0 && param.m_pObject) {
-    return param.m_pObject->GetString();
-  }
-  return CFX_ByteString();
-}
-
-FX_FLOAT CPDF_StreamContentParser::GetNumber(uint32_t index) {
-  if (index >= m_ParamCount) {
-    return 0;
-  }
-  int real_index = m_ParamStartPos + m_ParamCount - index - 1;
-  if (real_index >= PARAM_BUF_SIZE) {
-    real_index -= PARAM_BUF_SIZE;
-  }
-  ContentParam& param = m_ParamBuf[real_index];
-  if (param.m_Type == ContentParam::NUMBER) {
-    return param.m_Number.m_bInteger ? (FX_FLOAT)param.m_Number.m_Integer
-                                     : param.m_Number.m_Float;
-  }
-  if (param.m_Type == 0 && param.m_pObject) {
-    return param.m_pObject->GetNumber();
-  }
-  return 0;
-}
-
-void CPDF_StreamContentParser::SetGraphicStates(CPDF_PageObject* pObj,
-                                                bool bColor,
-                                                bool bText,
-                                                bool bGraph) {
-  pObj->m_GeneralState = m_pCurStates->m_GeneralState;
-  pObj->m_ClipPath = m_pCurStates->m_ClipPath;
-  pObj->m_ContentMark = m_CurContentMark;
-  if (bColor) {
-    pObj->m_ColorState = m_pCurStates->m_ColorState;
-  }
-  if (bGraph) {
-    pObj->m_GraphState = m_pCurStates->m_GraphState;
-  }
-  if (bText) {
-    pObj->m_TextState = m_pCurStates->m_TextState;
-  }
-}
-
-// static
-CPDF_StreamContentParser::OpCodes
-CPDF_StreamContentParser::InitializeOpCodes() {
-  return OpCodes({
-      {FXBSTR_ID('"', 0, 0, 0),
-       &CPDF_StreamContentParser::Handle_NextLineShowText_Space},
-      {FXBSTR_ID('\'', 0, 0, 0),
-       &CPDF_StreamContentParser::Handle_NextLineShowText},
-      {FXBSTR_ID('B', 0, 0, 0),
-       &CPDF_StreamContentParser::Handle_FillStrokePath},
-      {FXBSTR_ID('B', '*', 0, 0),
-       &CPDF_StreamContentParser::Handle_EOFillStrokePath},
-      {FXBSTR_ID('B', 'D', 'C', 0),
-       &CPDF_StreamContentParser::Handle_BeginMarkedContent_Dictionary},
-      {FXBSTR_ID('B', 'I', 0, 0), &CPDF_StreamContentParser::Handle_BeginImage},
-      {FXBSTR_ID('B', 'M', 'C', 0),
-       &CPDF_StreamContentParser::Handle_BeginMarkedContent},
-      {FXBSTR_ID('B', 'T', 0, 0), &CPDF_StreamContentParser::Handle_BeginText},
-      {FXBSTR_ID('C', 'S', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetColorSpace_Stroke},
-      {FXBSTR_ID('D', 'P', 0, 0),
-       &CPDF_StreamContentParser::Handle_MarkPlace_Dictionary},
-      {FXBSTR_ID('D', 'o', 0, 0),
-       &CPDF_StreamContentParser::Handle_ExecuteXObject},
-      {FXBSTR_ID('E', 'I', 0, 0), &CPDF_StreamContentParser::Handle_EndImage},
-      {FXBSTR_ID('E', 'M', 'C', 0),
-       &CPDF_StreamContentParser::Handle_EndMarkedContent},
-      {FXBSTR_ID('E', 'T', 0, 0), &CPDF_StreamContentParser::Handle_EndText},
-      {FXBSTR_ID('F', 0, 0, 0), &CPDF_StreamContentParser::Handle_FillPathOld},
-      {FXBSTR_ID('G', 0, 0, 0),
-       &CPDF_StreamContentParser::Handle_SetGray_Stroke},
-      {FXBSTR_ID('I', 'D', 0, 0),
-       &CPDF_StreamContentParser::Handle_BeginImageData},
-      {FXBSTR_ID('J', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetLineCap},
-      {FXBSTR_ID('K', 0, 0, 0),
-       &CPDF_StreamContentParser::Handle_SetCMYKColor_Stroke},
-      {FXBSTR_ID('M', 0, 0, 0),
-       &CPDF_StreamContentParser::Handle_SetMiterLimit},
-      {FXBSTR_ID('M', 'P', 0, 0), &CPDF_StreamContentParser::Handle_MarkPlace},
-      {FXBSTR_ID('Q', 0, 0, 0),
-       &CPDF_StreamContentParser::Handle_RestoreGraphState},
-      {FXBSTR_ID('R', 'G', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetRGBColor_Stroke},
-      {FXBSTR_ID('S', 0, 0, 0), &CPDF_StreamContentParser::Handle_StrokePath},
-      {FXBSTR_ID('S', 'C', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetColor_Stroke},
-      {FXBSTR_ID('S', 'C', 'N', 0),
-       &CPDF_StreamContentParser::Handle_SetColorPS_Stroke},
-      {FXBSTR_ID('T', '*', 0, 0),
-       &CPDF_StreamContentParser::Handle_MoveToNextLine},
-      {FXBSTR_ID('T', 'D', 0, 0),
-       &CPDF_StreamContentParser::Handle_MoveTextPoint_SetLeading},
-      {FXBSTR_ID('T', 'J', 0, 0),
-       &CPDF_StreamContentParser::Handle_ShowText_Positioning},
-      {FXBSTR_ID('T', 'L', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetTextLeading},
-      {FXBSTR_ID('T', 'c', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetCharSpace},
-      {FXBSTR_ID('T', 'd', 0, 0),
-       &CPDF_StreamContentParser::Handle_MoveTextPoint},
-      {FXBSTR_ID('T', 'f', 0, 0), &CPDF_StreamContentParser::Handle_SetFont},
-      {FXBSTR_ID('T', 'j', 0, 0), &CPDF_StreamContentParser::Handle_ShowText},
-      {FXBSTR_ID('T', 'm', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetTextMatrix},
-      {FXBSTR_ID('T', 'r', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetTextRenderMode},
-      {FXBSTR_ID('T', 's', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetTextRise},
-      {FXBSTR_ID('T', 'w', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetWordSpace},
-      {FXBSTR_ID('T', 'z', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetHorzScale},
-      {FXBSTR_ID('W', 0, 0, 0), &CPDF_StreamContentParser::Handle_Clip},
-      {FXBSTR_ID('W', '*', 0, 0), &CPDF_StreamContentParser::Handle_EOClip},
-      {FXBSTR_ID('b', 0, 0, 0),
-       &CPDF_StreamContentParser::Handle_CloseFillStrokePath},
-      {FXBSTR_ID('b', '*', 0, 0),
-       &CPDF_StreamContentParser::Handle_CloseEOFillStrokePath},
-      {FXBSTR_ID('c', 0, 0, 0), &CPDF_StreamContentParser::Handle_CurveTo_123},
-      {FXBSTR_ID('c', 'm', 0, 0),
-       &CPDF_StreamContentParser::Handle_ConcatMatrix},
-      {FXBSTR_ID('c', 's', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetColorSpace_Fill},
-      {FXBSTR_ID('d', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetDash},
-      {FXBSTR_ID('d', '0', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetCharWidth},
-      {FXBSTR_ID('d', '1', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetCachedDevice},
-      {FXBSTR_ID('f', 0, 0, 0), &CPDF_StreamContentParser::Handle_FillPath},
-      {FXBSTR_ID('f', '*', 0, 0), &CPDF_StreamContentParser::Handle_EOFillPath},
-      {FXBSTR_ID('g', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetGray_Fill},
-      {FXBSTR_ID('g', 's', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetExtendGraphState},
-      {FXBSTR_ID('h', 0, 0, 0), &CPDF_StreamContentParser::Handle_ClosePath},
-      {FXBSTR_ID('i', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetFlat},
-      {FXBSTR_ID('j', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetLineJoin},
-      {FXBSTR_ID('k', 0, 0, 0),
-       &CPDF_StreamContentParser::Handle_SetCMYKColor_Fill},
-      {FXBSTR_ID('l', 0, 0, 0), &CPDF_StreamContentParser::Handle_LineTo},
-      {FXBSTR_ID('m', 0, 0, 0), &CPDF_StreamContentParser::Handle_MoveTo},
-      {FXBSTR_ID('n', 0, 0, 0), &CPDF_StreamContentParser::Handle_EndPath},
-      {FXBSTR_ID('q', 0, 0, 0),
-       &CPDF_StreamContentParser::Handle_SaveGraphState},
-      {FXBSTR_ID('r', 'e', 0, 0), &CPDF_StreamContentParser::Handle_Rectangle},
-      {FXBSTR_ID('r', 'g', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetRGBColor_Fill},
-      {FXBSTR_ID('r', 'i', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetRenderIntent},
-      {FXBSTR_ID('s', 0, 0, 0),
-       &CPDF_StreamContentParser::Handle_CloseStrokePath},
-      {FXBSTR_ID('s', 'c', 0, 0),
-       &CPDF_StreamContentParser::Handle_SetColor_Fill},
-      {FXBSTR_ID('s', 'c', 'n', 0),
-       &CPDF_StreamContentParser::Handle_SetColorPS_Fill},
-      {FXBSTR_ID('s', 'h', 0, 0), &CPDF_StreamContentParser::Handle_ShadeFill},
-      {FXBSTR_ID('v', 0, 0, 0), &CPDF_StreamContentParser::Handle_CurveTo_23},
-      {FXBSTR_ID('w', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetLineWidth},
-      {FXBSTR_ID('y', 0, 0, 0), &CPDF_StreamContentParser::Handle_CurveTo_13},
-  });
-}
-
-void CPDF_StreamContentParser::OnOperator(const FX_CHAR* op) {
-  int i = 0;
-  uint32_t opid = 0;
-  while (i < 4 && op[i]) {
-    opid = (opid << 8) + op[i];
-    i++;
-  }
-  while (i < 4) {
-    opid <<= 8;
-    i++;
-  }
-
-  static const OpCodes s_OpCodes = InitializeOpCodes();
-
-  auto it = s_OpCodes.find(opid);
-  if (it != s_OpCodes.end())
-    (this->*it->second)();
-}
-
-void CPDF_StreamContentParser::Handle_CloseFillStrokePath() {
-  Handle_ClosePath();
-  AddPathObject(FXFILL_WINDING, true);
-}
-
-void CPDF_StreamContentParser::Handle_FillStrokePath() {
-  AddPathObject(FXFILL_WINDING, true);
-}
-
-void CPDF_StreamContentParser::Handle_CloseEOFillStrokePath() {
-  AddPathPoint(m_PathStartX, m_PathStartY, FXPT_LINETO | FXPT_CLOSEFIGURE);
-  AddPathObject(FXFILL_ALTERNATE, true);
-}
-
-void CPDF_StreamContentParser::Handle_EOFillStrokePath() {
-  AddPathObject(FXFILL_ALTERNATE, true);
-}
-
-void CPDF_StreamContentParser::Handle_BeginMarkedContent_Dictionary() {
-  CFX_ByteString tag = GetString(1);
-  CPDF_Object* pProperty = GetObject(0);
-  if (!pProperty) {
-    return;
-  }
-  bool bDirect = true;
-  if (pProperty->IsName()) {
-    pProperty = FindResourceObj("Properties", pProperty->GetString());
-    if (!pProperty)
-      return;
-    bDirect = false;
-  }
-  if (CPDF_Dictionary* pDict = pProperty->AsDictionary()) {
-    m_CurContentMark.AddMark(tag, pDict, bDirect);
-  }
-}
-
-void CPDF_StreamContentParser::Handle_BeginImage() {
-  FX_FILESIZE savePos = m_pSyntax->GetPos();
-  CPDF_Dictionary* pDict =
-      new CPDF_Dictionary(m_pDocument->GetByteStringPool());
-  while (1) {
-    CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
-    if (type == CPDF_StreamParser::Keyword) {
-      CFX_ByteString bsKeyword(m_pSyntax->GetWordBuf(),
-                               m_pSyntax->GetWordSize());
-      if (bsKeyword != "ID") {
-        m_pSyntax->SetPos(savePos);
-        pDict->Release();
-        return;
-      }
-    }
-    if (type != CPDF_StreamParser::Name) {
-      break;
-    }
-    CFX_ByteString key((const FX_CHAR*)m_pSyntax->GetWordBuf() + 1,
-                       m_pSyntax->GetWordSize() - 1);
-    std::unique_ptr<CPDF_Object, ReleaseDeleter<CPDF_Object>> pObj(
-        m_pSyntax->ReadNextObject(false, 0));
-    if (!key.IsEmpty()) {
-      uint32_t dwObjNum = pObj ? pObj->GetObjNum() : 0;
-      if (dwObjNum)
-        pDict->SetReferenceFor(key, m_pDocument, dwObjNum);
-      else
-        pDict->SetFor(key, pObj.release());
-    }
-  }
-  PDF_ReplaceAbbr(pDict);
-  CPDF_Object* pCSObj = nullptr;
-  if (pDict->KeyExist("ColorSpace")) {
-    pCSObj = pDict->GetDirectObjectFor("ColorSpace");
-    if (pCSObj->IsName()) {
-      CFX_ByteString name = pCSObj->GetString();
-      if (name != "DeviceRGB" && name != "DeviceGray" && name != "DeviceCMYK") {
-        pCSObj = FindResourceObj("ColorSpace", name);
-        if (pCSObj && pCSObj->IsInline()) {
-          pCSObj = pCSObj->Clone();
-          pDict->SetFor("ColorSpace", pCSObj);
-        }
-      }
-    }
-  }
-  pDict->SetNameFor("Subtype", "Image");
-  UniqueStream pStream(m_pSyntax->ReadInlineStream(m_pDocument, pDict, pCSObj));
-  bool bGaveDictAway = !!pStream;
-  while (1) {
-    CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
-    if (type == CPDF_StreamParser::EndOfData) {
-      break;
-    }
-    if (type != CPDF_StreamParser::Keyword) {
-      continue;
-    }
-    if (m_pSyntax->GetWordSize() == 2 && m_pSyntax->GetWordBuf()[0] == 'E' &&
-        m_pSyntax->GetWordBuf()[1] == 'I') {
-      break;
-    }
-  }
-  CPDF_ImageObject* pImgObj = AddImage(std::move(pStream));
-  if (!pImgObj && !bGaveDictAway)
-    pDict->Release();
-}
-
-void CPDF_StreamContentParser::Handle_BeginMarkedContent() {
-  m_CurContentMark.AddMark(GetString(0), nullptr, FALSE);
-}
-
-void CPDF_StreamContentParser::Handle_BeginText() {
-  m_pCurStates->m_TextMatrix.Set(1.0f, 0, 0, 1.0f, 0, 0);
-  OnChangeTextMatrix();
-  m_pCurStates->m_TextX = 0;
-  m_pCurStates->m_TextY = 0;
-  m_pCurStates->m_TextLineX = 0;
-  m_pCurStates->m_TextLineY = 0;
-}
-
-void CPDF_StreamContentParser::Handle_CurveTo_123() {
-  AddPathPoint(GetNumber(5), GetNumber(4), FXPT_BEZIERTO);
-  AddPathPoint(GetNumber(3), GetNumber(2), FXPT_BEZIERTO);
-  AddPathPoint(GetNumber(1), GetNumber(0), FXPT_BEZIERTO);
-}
-
-void CPDF_StreamContentParser::Handle_ConcatMatrix() {
-  CFX_Matrix new_matrix(GetNumber(5), GetNumber(4), GetNumber(3), GetNumber(2),
-                        GetNumber(1), GetNumber(0));
-  new_matrix.Concat(m_pCurStates->m_CTM);
-  m_pCurStates->m_CTM = new_matrix;
-  OnChangeTextMatrix();
-}
-
-void CPDF_StreamContentParser::Handle_SetColorSpace_Fill() {
-  CPDF_ColorSpace* pCS = FindColorSpace(GetString(0));
-  if (!pCS)
-    return;
-
-  m_pCurStates->m_ColorState.GetMutableFillColor()->SetColorSpace(pCS);
-}
-
-void CPDF_StreamContentParser::Handle_SetColorSpace_Stroke() {
-  CPDF_ColorSpace* pCS = FindColorSpace(GetString(0));
-  if (!pCS)
-    return;
-
-  m_pCurStates->m_ColorState.GetMutableStrokeColor()->SetColorSpace(pCS);
-}
-
-void CPDF_StreamContentParser::Handle_SetDash() {
-  CPDF_Array* pArray = ToArray(GetObject(1));
-  if (!pArray)
-    return;
-
-  m_pCurStates->SetLineDash(pArray, GetNumber(0), 1.0f);
-}
-
-void CPDF_StreamContentParser::Handle_SetCharWidth() {
-  m_Type3Data[0] = GetNumber(1);
-  m_Type3Data[1] = GetNumber(0);
-  m_bColored = true;
-}
-
-void CPDF_StreamContentParser::Handle_SetCachedDevice() {
-  for (int i = 0; i < 6; i++) {
-    m_Type3Data[i] = GetNumber(5 - i);
-  }
-  m_bColored = false;
-}
-
-void CPDF_StreamContentParser::Handle_ExecuteXObject() {
-  CFX_ByteString name = GetString(0);
-  if (name == m_LastImageName && m_pLastImage && m_pLastImage->GetStream() &&
-      m_pLastImage->GetStream()->GetObjNum()) {
-    AddImage(m_pLastImage);
-    return;
-  }
-
-  CPDF_Stream* pXObject = ToStream(FindResourceObj("XObject", name));
-  if (!pXObject) {
-    m_bResourceMissing = true;
-    return;
-  }
-
-  CFX_ByteString type;
-  if (pXObject->GetDict())
-    type = pXObject->GetDict()->GetStringFor("Subtype");
-
-  if (type == "Image") {
-    CPDF_ImageObject* pObj = AddImage(pXObject->GetObjNum());
-    m_LastImageName = name;
-    m_pLastImage = pObj->GetImage();
-    if (!m_pObjectHolder->HasImageMask())
-      m_pObjectHolder->SetHasImageMask(m_pLastImage->IsMask());
-  } else if (type == "Form") {
-    AddForm(pXObject);
-  }
-}
-
-void CPDF_StreamContentParser::AddForm(CPDF_Stream* pStream) {
-  std::unique_ptr<CPDF_FormObject> pFormObj(new CPDF_FormObject);
-  pFormObj->m_pForm.reset(
-      new CPDF_Form(m_pDocument, m_pPageResources, pStream, m_pResources));
-  pFormObj->m_FormMatrix = m_pCurStates->m_CTM;
-  pFormObj->m_FormMatrix.Concat(m_mtContentToUser);
-  CPDF_AllStates status;
-  status.m_GeneralState = m_pCurStates->m_GeneralState;
-  status.m_GraphState = m_pCurStates->m_GraphState;
-  status.m_ColorState = m_pCurStates->m_ColorState;
-  status.m_TextState = m_pCurStates->m_TextState;
-  pFormObj->m_pForm->ParseContent(&status, nullptr, nullptr, m_Level + 1);
-  if (!m_pObjectHolder->BackgroundAlphaNeeded() &&
-      pFormObj->m_pForm->BackgroundAlphaNeeded()) {
-    m_pObjectHolder->SetBackgroundAlphaNeeded(TRUE);
-  }
-  pFormObj->CalcBoundingBox();
-  SetGraphicStates(pFormObj.get(), true, true, true);
-  m_pObjectHolder->GetPageObjectList()->push_back(std::move(pFormObj));
-}
-
-CPDF_ImageObject* CPDF_StreamContentParser::AddImage(UniqueStream pStream) {
-  if (!pStream)
-    return nullptr;
-
-  auto pImageObj = pdfium::MakeUnique<CPDF_ImageObject>();
-  pImageObj->SetOwnedImage(
-      pdfium::MakeUnique<CPDF_Image>(m_pDocument, pStream.release(), true));
-
-  return AddImageObject(std::move(pImageObj));
-}
-
-CPDF_ImageObject* CPDF_StreamContentParser::AddImage(uint32_t streamObjNum) {
-  CPDF_Stream* pStream = ToStream(m_pDocument->GetIndirectObject(streamObjNum));
-  if (!pStream)
-    return nullptr;
-
-  auto pImageObj = pdfium::MakeUnique<CPDF_ImageObject>();
-  pImageObj->SetUnownedImage(m_pDocument->LoadImageF(pStream));
-  return AddImageObject(std::move(pImageObj));
-}
-
-CPDF_ImageObject* CPDF_StreamContentParser::AddImage(CPDF_Image* pImage) {
-  if (!pImage)
-    return nullptr;
-
-  auto pImageObj = pdfium::MakeUnique<CPDF_ImageObject>();
-  pImageObj->SetUnownedImage(
-      m_pDocument->GetPageData()->GetImage(pImage->GetStream()));
-
-  return AddImageObject(std::move(pImageObj));
-}
-
-CPDF_ImageObject* CPDF_StreamContentParser::AddImageObject(
-    std::unique_ptr<CPDF_ImageObject> pImageObj) {
-  SetGraphicStates(pImageObj.get(), pImageObj->GetImage()->IsMask(), false,
-                   false);
-
-  CFX_Matrix ImageMatrix = m_pCurStates->m_CTM;
-  ImageMatrix.Concat(m_mtContentToUser);
-  pImageObj->m_Matrix = ImageMatrix;
-  pImageObj->CalcBoundingBox();
-
-  CPDF_ImageObject* pRet = pImageObj.get();
-  m_pObjectHolder->GetPageObjectList()->push_back(std::move(pImageObj));
-  return pRet;
-}
-
-void CPDF_StreamContentParser::Handle_MarkPlace_Dictionary() {}
-
-void CPDF_StreamContentParser::Handle_EndImage() {}
-
-void CPDF_StreamContentParser::Handle_EndMarkedContent() {
-  if (m_CurContentMark)
-    m_CurContentMark.DeleteLastMark();
-}
-
-void CPDF_StreamContentParser::Handle_EndText() {
-  if (m_ClipTextList.empty())
-    return;
-
-  if (TextRenderingModeIsClipMode(m_pCurStates->m_TextState.GetTextMode()))
-    m_pCurStates->m_ClipPath.AppendTexts(&m_ClipTextList);
-
-  m_ClipTextList.clear();
-}
-
-void CPDF_StreamContentParser::Handle_FillPath() {
-  AddPathObject(FXFILL_WINDING, false);
-}
-
-void CPDF_StreamContentParser::Handle_FillPathOld() {
-  AddPathObject(FXFILL_WINDING, false);
-}
-
-void CPDF_StreamContentParser::Handle_EOFillPath() {
-  AddPathObject(FXFILL_ALTERNATE, false);
-}
-
-void CPDF_StreamContentParser::Handle_SetGray_Fill() {
-  FX_FLOAT value = GetNumber(0);
-  CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY);
-  m_pCurStates->m_ColorState.SetFillColor(pCS, &value, 1);
-}
-
-void CPDF_StreamContentParser::Handle_SetGray_Stroke() {
-  FX_FLOAT value = GetNumber(0);
-  CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY);
-  m_pCurStates->m_ColorState.SetStrokeColor(pCS, &value, 1);
-}
-
-void CPDF_StreamContentParser::Handle_SetExtendGraphState() {
-  CFX_ByteString name = GetString(0);
-  CPDF_Dictionary* pGS = ToDictionary(FindResourceObj("ExtGState", name));
-  if (!pGS) {
-    m_bResourceMissing = true;
-    return;
-  }
-  m_pCurStates->ProcessExtGS(pGS, this);
-}
-
-void CPDF_StreamContentParser::Handle_ClosePath() {
-  if (m_PathPointCount == 0) {
-    return;
-  }
-  if (m_PathStartX != m_PathCurrentX || m_PathStartY != m_PathCurrentY) {
-    AddPathPoint(m_PathStartX, m_PathStartY, FXPT_LINETO | FXPT_CLOSEFIGURE);
-  } else if (m_pPathPoints[m_PathPointCount - 1].m_Flag != FXPT_MOVETO) {
-    m_pPathPoints[m_PathPointCount - 1].m_Flag |= FXPT_CLOSEFIGURE;
-  }
-}
-
-void CPDF_StreamContentParser::Handle_SetFlat() {
-  m_pCurStates->m_GeneralState.SetFlatness(GetNumber(0));
-}
-
-void CPDF_StreamContentParser::Handle_BeginImageData() {}
-
-void CPDF_StreamContentParser::Handle_SetLineJoin() {
-  m_pCurStates->m_GraphState.SetLineJoin(
-      static_cast<CFX_GraphStateData::LineJoin>(GetInteger(0)));
-}
-
-void CPDF_StreamContentParser::Handle_SetLineCap() {
-  m_pCurStates->m_GraphState.SetLineCap(
-      static_cast<CFX_GraphStateData::LineCap>(GetInteger(0)));
-}
-
-void CPDF_StreamContentParser::Handle_SetCMYKColor_Fill() {
-  if (m_ParamCount != 4)
-    return;
-
-  FX_FLOAT values[4];
-  for (int i = 0; i < 4; i++) {
-    values[i] = GetNumber(3 - i);
-  }
-  CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK);
-  m_pCurStates->m_ColorState.SetFillColor(pCS, values, 4);
-}
-
-void CPDF_StreamContentParser::Handle_SetCMYKColor_Stroke() {
-  if (m_ParamCount != 4)
-    return;
-
-  FX_FLOAT values[4];
-  for (int i = 0; i < 4; i++) {
-    values[i] = GetNumber(3 - i);
-  }
-  CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK);
-  m_pCurStates->m_ColorState.SetStrokeColor(pCS, values, 4);
-}
-
-void CPDF_StreamContentParser::Handle_LineTo() {
-  if (m_ParamCount != 2)
-    return;
-
-  AddPathPoint(GetNumber(1), GetNumber(0), FXPT_LINETO);
-}
-
-void CPDF_StreamContentParser::Handle_MoveTo() {
-  if (m_ParamCount != 2)
-    return;
-
-  AddPathPoint(GetNumber(1), GetNumber(0), FXPT_MOVETO);
-  ParsePathObject();
-}
-
-void CPDF_StreamContentParser::Handle_SetMiterLimit() {
-  m_pCurStates->m_GraphState.SetMiterLimit(GetNumber(0));
-}
-
-void CPDF_StreamContentParser::Handle_MarkPlace() {}
-
-void CPDF_StreamContentParser::Handle_EndPath() {
-  AddPathObject(0, false);
-}
-
-void CPDF_StreamContentParser::Handle_SaveGraphState() {
-  std::unique_ptr<CPDF_AllStates> pStates(new CPDF_AllStates);
-  pStates->Copy(*m_pCurStates);
-  m_StateStack.push_back(std::move(pStates));
-}
-
-void CPDF_StreamContentParser::Handle_RestoreGraphState() {
-  if (m_StateStack.empty())
-    return;
-  std::unique_ptr<CPDF_AllStates> pStates = std::move(m_StateStack.back());
-  m_StateStack.pop_back();
-  m_pCurStates->Copy(*pStates);
-}
-
-void CPDF_StreamContentParser::Handle_Rectangle() {
-  FX_FLOAT x = GetNumber(3), y = GetNumber(2);
-  FX_FLOAT w = GetNumber(1), h = GetNumber(0);
-  AddPathRect(x, y, w, h);
-}
-
-void CPDF_StreamContentParser::AddPathRect(FX_FLOAT x,
-                                           FX_FLOAT y,
-                                           FX_FLOAT w,
-                                           FX_FLOAT h) {
-  AddPathPoint(x, y, FXPT_MOVETO);
-  AddPathPoint(x + w, y, FXPT_LINETO);
-  AddPathPoint(x + w, y + h, FXPT_LINETO);
-  AddPathPoint(x, y + h, FXPT_LINETO);
-  AddPathPoint(x, y, FXPT_LINETO | FXPT_CLOSEFIGURE);
-}
-
-void CPDF_StreamContentParser::Handle_SetRGBColor_Fill() {
-  if (m_ParamCount != 3)
-    return;
-
-  FX_FLOAT values[3];
-  for (int i = 0; i < 3; i++) {
-    values[i] = GetNumber(2 - i);
-  }
-  CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB);
-  m_pCurStates->m_ColorState.SetFillColor(pCS, values, 3);
-}
-
-void CPDF_StreamContentParser::Handle_SetRGBColor_Stroke() {
-  if (m_ParamCount != 3)
-    return;
-
-  FX_FLOAT values[3];
-  for (int i = 0; i < 3; i++) {
-    values[i] = GetNumber(2 - i);
-  }
-  CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB);
-  m_pCurStates->m_ColorState.SetStrokeColor(pCS, values, 3);
-}
-
-void CPDF_StreamContentParser::Handle_SetRenderIntent() {}
-
-void CPDF_StreamContentParser::Handle_CloseStrokePath() {
-  Handle_ClosePath();
-  AddPathObject(0, true);
-}
-
-void CPDF_StreamContentParser::Handle_StrokePath() {
-  AddPathObject(0, true);
-}
-
-void CPDF_StreamContentParser::Handle_SetColor_Fill() {
-  FX_FLOAT values[4];
-  int nargs = m_ParamCount;
-  if (nargs > 4) {
-    nargs = 4;
-  }
-  for (int i = 0; i < nargs; i++) {
-    values[i] = GetNumber(nargs - i - 1);
-  }
-  m_pCurStates->m_ColorState.SetFillColor(nullptr, values, nargs);
-}
-
-void CPDF_StreamContentParser::Handle_SetColor_Stroke() {
-  FX_FLOAT values[4];
-  int nargs = m_ParamCount;
-  if (nargs > 4) {
-    nargs = 4;
-  }
-  for (int i = 0; i < nargs; i++) {
-    values[i] = GetNumber(nargs - i - 1);
-  }
-  m_pCurStates->m_ColorState.SetStrokeColor(nullptr, values, nargs);
-}
-
-void CPDF_StreamContentParser::Handle_SetColorPS_Fill() {
-  CPDF_Object* pLastParam = GetObject(0);
-  if (!pLastParam) {
-    return;
-  }
-  uint32_t nargs = m_ParamCount;
-  uint32_t nvalues = nargs;
-  if (pLastParam->IsName())
-    nvalues--;
-  FX_FLOAT* values = nullptr;
-  if (nvalues) {
-    values = FX_Alloc(FX_FLOAT, nvalues);
-    for (uint32_t i = 0; i < nvalues; i++) {
-      values[i] = GetNumber(nargs - i - 1);
-    }
-  }
-  if (nvalues != nargs) {
-    CPDF_Pattern* pPattern = FindPattern(GetString(0), false);
-    if (pPattern) {
-      m_pCurStates->m_ColorState.SetFillPattern(pPattern, values, nvalues);
-    }
-  } else {
-    m_pCurStates->m_ColorState.SetFillColor(nullptr, values, nvalues);
-  }
-  FX_Free(values);
-}
-
-void CPDF_StreamContentParser::Handle_SetColorPS_Stroke() {
-  CPDF_Object* pLastParam = GetObject(0);
-  if (!pLastParam) {
-    return;
-  }
-  int nargs = m_ParamCount;
-  int nvalues = nargs;
-  if (pLastParam->IsName())
-    nvalues--;
-
-  FX_FLOAT* values = nullptr;
-  if (nvalues) {
-    values = FX_Alloc(FX_FLOAT, nvalues);
-    for (int i = 0; i < nvalues; i++) {
-      values[i] = GetNumber(nargs - i - 1);
-    }
-  }
-  if (nvalues != nargs) {
-    CPDF_Pattern* pPattern = FindPattern(GetString(0), false);
-    if (pPattern) {
-      m_pCurStates->m_ColorState.SetStrokePattern(pPattern, values, nvalues);
-    }
-  } else {
-    m_pCurStates->m_ColorState.SetStrokeColor(nullptr, values, nvalues);
-  }
-  FX_Free(values);
-}
-
-void CPDF_StreamContentParser::Handle_ShadeFill() {
-  CPDF_Pattern* pPattern = FindPattern(GetString(0), true);
-  if (!pPattern)
-    return;
-
-  CPDF_ShadingPattern* pShading = pPattern->AsShadingPattern();
-  if (!pShading)
-    return;
-
-  if (!pShading->IsShadingObject() || !pShading->Load())
-    return;
-
-  std::unique_ptr<CPDF_ShadingObject> pObj(new CPDF_ShadingObject);
-  pObj->m_pShading = pShading;
-  SetGraphicStates(pObj.get(), false, false, false);
-  pObj->m_Matrix = m_pCurStates->m_CTM;
-  pObj->m_Matrix.Concat(m_mtContentToUser);
-  CFX_FloatRect bbox =
-      pObj->m_ClipPath ? pObj->m_ClipPath.GetClipBox() : m_BBox;
-  if (pShading->IsMeshShading())
-    bbox.Intersect(GetShadingBBox(pShading, pObj->m_Matrix));
-  pObj->m_Left = bbox.left;
-  pObj->m_Right = bbox.right;
-  pObj->m_Top = bbox.top;
-  pObj->m_Bottom = bbox.bottom;
-  m_pObjectHolder->GetPageObjectList()->push_back(std::move(pObj));
-}
-
-void CPDF_StreamContentParser::Handle_SetCharSpace() {
-  m_pCurStates->m_TextState.SetCharSpace(GetNumber(0));
-}
-
-void CPDF_StreamContentParser::Handle_MoveTextPoint() {
-  m_pCurStates->m_TextLineX += GetNumber(1);
-  m_pCurStates->m_TextLineY += GetNumber(0);
-  m_pCurStates->m_TextX = m_pCurStates->m_TextLineX;
-  m_pCurStates->m_TextY = m_pCurStates->m_TextLineY;
-}
-
-void CPDF_StreamContentParser::Handle_MoveTextPoint_SetLeading() {
-  Handle_MoveTextPoint();
-  m_pCurStates->m_TextLeading = -GetNumber(0);
-}
-
-void CPDF_StreamContentParser::Handle_SetFont() {
-  FX_FLOAT fs = GetNumber(0);
-  if (fs == 0) {
-    fs = m_DefFontSize;
-  }
-  m_pCurStates->m_TextState.SetFontSize(fs);
-  CPDF_Font* pFont = FindFont(GetString(1));
-  if (pFont) {
-    m_pCurStates->m_TextState.SetFont(pFont);
-  }
-}
-
-CPDF_Object* CPDF_StreamContentParser::FindResourceObj(
-    const CFX_ByteString& type,
-    const CFX_ByteString& name) {
-  if (!m_pResources)
-    return nullptr;
-  CPDF_Dictionary* pDict = m_pResources->GetDictFor(type);
-  if (pDict)
-    return pDict->GetDirectObjectFor(name);
-  if (m_pResources == m_pPageResources || !m_pPageResources)
-    return nullptr;
-
-  CPDF_Dictionary* pPageDict = m_pPageResources->GetDictFor(type);
-  return pPageDict ? pPageDict->GetDirectObjectFor(name) : nullptr;
-}
-
-CPDF_Font* CPDF_StreamContentParser::FindFont(const CFX_ByteString& name) {
-  CPDF_Dictionary* pFontDict = ToDictionary(FindResourceObj("Font", name));
-  if (!pFontDict) {
-    m_bResourceMissing = true;
-    return CPDF_Font::GetStockFont(m_pDocument, "Helvetica");
-  }
-
-  CPDF_Font* pFont = m_pDocument->LoadFont(pFontDict);
-  if (pFont && pFont->IsType3Font()) {
-    pFont->AsType3Font()->SetPageResources(m_pResources);
-    pFont->AsType3Font()->CheckType3FontMetrics();
-  }
-  return pFont;
-}
-
-CPDF_ColorSpace* CPDF_StreamContentParser::FindColorSpace(
-    const CFX_ByteString& name) {
-  if (name == "Pattern") {
-    return CPDF_ColorSpace::GetStockCS(PDFCS_PATTERN);
-  }
-  if (name == "DeviceGray" || name == "DeviceCMYK" || name == "DeviceRGB") {
-    CFX_ByteString defname = "Default";
-    defname += name.Mid(7);
-    CPDF_Object* pDefObj = FindResourceObj("ColorSpace", defname);
-    if (!pDefObj) {
-      if (name == "DeviceGray") {
-        return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY);
-      }
-      if (name == "DeviceRGB") {
-        return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB);
-      }
-      return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK);
-    }
-    return m_pDocument->LoadColorSpace(pDefObj);
-  }
-  CPDF_Object* pCSObj = FindResourceObj("ColorSpace", name);
-  if (!pCSObj) {
-    m_bResourceMissing = true;
-    return nullptr;
-  }
-  return m_pDocument->LoadColorSpace(pCSObj);
-}
-
-CPDF_Pattern* CPDF_StreamContentParser::FindPattern(const CFX_ByteString& name,
-                                                    bool bShading) {
-  CPDF_Object* pPattern =
-      FindResourceObj(bShading ? "Shading" : "Pattern", name);
-  if (!pPattern || (!pPattern->IsDictionary() && !pPattern->IsStream())) {
-    m_bResourceMissing = true;
-    return nullptr;
-  }
-  return m_pDocument->LoadPattern(pPattern, bShading,
-                                  m_pCurStates->m_ParentMatrix);
-}
-
-void CPDF_StreamContentParser::ConvertTextSpace(FX_FLOAT& x, FX_FLOAT& y) {
-  m_pCurStates->m_TextMatrix.Transform(x, y, x, y);
-  ConvertUserSpace(x, y);
-}
-
-void CPDF_StreamContentParser::ConvertUserSpace(FX_FLOAT& x, FX_FLOAT& y) {
-  m_pCurStates->m_CTM.Transform(x, y, x, y);
-  m_mtContentToUser.Transform(x, y, x, y);
-}
-
-void CPDF_StreamContentParser::AddTextObject(CFX_ByteString* pStrs,
-                                             FX_FLOAT fInitKerning,
-                                             FX_FLOAT* pKerning,
-                                             int nsegs) {
-  CPDF_Font* pFont = m_pCurStates->m_TextState.GetFont();
-  if (!pFont) {
-    return;
-  }
-  if (fInitKerning != 0) {
-    if (!pFont->IsVertWriting()) {
-      m_pCurStates->m_TextX -=
-          (fInitKerning * m_pCurStates->m_TextState.GetFontSize()) / 1000;
-    } else {
-      m_pCurStates->m_TextY -=
-          (fInitKerning * m_pCurStates->m_TextState.GetFontSize()) / 1000;
-    }
-  }
-  if (nsegs == 0) {
-    return;
-  }
-  const TextRenderingMode text_mode =
-      pFont->IsType3Font() ? TextRenderingMode::MODE_FILL
-                           : m_pCurStates->m_TextState.GetTextMode();
-  {
-    std::unique_ptr<CPDF_TextObject> pText(new CPDF_TextObject);
-    m_pLastTextObject = pText.get();
-    SetGraphicStates(m_pLastTextObject, true, true, true);
-    if (TextRenderingModeIsStrokeMode(text_mode)) {
-      FX_FLOAT* pCTM = pText->m_TextState.GetMutableCTM();
-      pCTM[0] = m_pCurStates->m_CTM.a;
-      pCTM[1] = m_pCurStates->m_CTM.c;
-      pCTM[2] = m_pCurStates->m_CTM.b;
-      pCTM[3] = m_pCurStates->m_CTM.d;
-    }
-    pText->SetSegments(pStrs, pKerning, nsegs);
-    pText->m_PosX = m_pCurStates->m_TextX;
-    pText->m_PosY = m_pCurStates->m_TextY + m_pCurStates->m_TextRise;
-    ConvertTextSpace(pText->m_PosX, pText->m_PosY);
-    FX_FLOAT x_advance;
-    FX_FLOAT y_advance;
-    pText->CalcPositionData(&x_advance, &y_advance,
-                            m_pCurStates->m_TextHorzScale);
-    m_pCurStates->m_TextX += x_advance;
-    m_pCurStates->m_TextY += y_advance;
-    if (TextRenderingModeIsClipMode(text_mode)) {
-      m_ClipTextList.push_back(
-          std::unique_ptr<CPDF_TextObject>(pText->Clone()));
-    }
-    m_pObjectHolder->GetPageObjectList()->push_back(std::move(pText));
-  }
-  if (pKerning && pKerning[nsegs - 1] != 0) {
-    if (!pFont->IsVertWriting()) {
-      m_pCurStates->m_TextX -=
-          (pKerning[nsegs - 1] * m_pCurStates->m_TextState.GetFontSize()) /
-          1000;
-    } else {
-      m_pCurStates->m_TextY -=
-          (pKerning[nsegs - 1] * m_pCurStates->m_TextState.GetFontSize()) /
-          1000;
-    }
-  }
-}
-
-void CPDF_StreamContentParser::Handle_ShowText() {
-  CFX_ByteString str = GetString(0);
-  if (str.IsEmpty()) {
-    return;
-  }
-  AddTextObject(&str, 0, nullptr, 1);
-}
-
-void CPDF_StreamContentParser::Handle_ShowText_Positioning() {
-  CPDF_Array* pArray = ToArray(GetObject(0));
-  if (!pArray)
-    return;
-
-  size_t n = pArray->GetCount();
-  size_t nsegs = 0;
-  for (size_t i = 0; i < n; i++) {
-    if (pArray->GetDirectObjectAt(i)->IsString())
-      nsegs++;
-  }
-  if (nsegs == 0) {
-    for (size_t i = 0; i < n; i++) {
-      m_pCurStates->m_TextX -=
-          (pArray->GetNumberAt(i) * m_pCurStates->m_TextState.GetFontSize()) /
-          1000;
-    }
-    return;
-  }
-  CFX_ByteString* pStrs = new CFX_ByteString[nsegs];
-  FX_FLOAT* pKerning = FX_Alloc(FX_FLOAT, nsegs);
-  size_t iSegment = 0;
-  FX_FLOAT fInitKerning = 0;
-  for (size_t i = 0; i < n; i++) {
-    CPDF_Object* pObj = pArray->GetDirectObjectAt(i);
-    if (pObj->IsString()) {
-      CFX_ByteString str = pObj->GetString();
-      if (str.IsEmpty()) {
-        continue;
-      }
-      pStrs[iSegment] = str;
-      pKerning[iSegment++] = 0;
-    } else {
-      FX_FLOAT num = pObj ? pObj->GetNumber() : 0;
-      if (iSegment == 0) {
-        fInitKerning += num;
-      } else {
-        pKerning[iSegment - 1] += num;
-      }
-    }
-  }
-  AddTextObject(pStrs, fInitKerning, pKerning, iSegment);
-  delete[] pStrs;
-  FX_Free(pKerning);
-}
-
-void CPDF_StreamContentParser::Handle_SetTextLeading() {
-  m_pCurStates->m_TextLeading = GetNumber(0);
-}
-
-void CPDF_StreamContentParser::Handle_SetTextMatrix() {
-  m_pCurStates->m_TextMatrix.Set(GetNumber(5), GetNumber(4), GetNumber(3),
-                                 GetNumber(2), GetNumber(1), GetNumber(0));
-  OnChangeTextMatrix();
-  m_pCurStates->m_TextX = 0;
-  m_pCurStates->m_TextY = 0;
-  m_pCurStates->m_TextLineX = 0;
-  m_pCurStates->m_TextLineY = 0;
-}
-
-void CPDF_StreamContentParser::OnChangeTextMatrix() {
-  CFX_Matrix text_matrix(m_pCurStates->m_TextHorzScale, 0.0f, 0.0f, 1.0f, 0.0f,
-                         0.0f);
-  text_matrix.Concat(m_pCurStates->m_TextMatrix);
-  text_matrix.Concat(m_pCurStates->m_CTM);
-  text_matrix.Concat(m_mtContentToUser);
-  FX_FLOAT* pTextMatrix = m_pCurStates->m_TextState.GetMutableMatrix();
-  pTextMatrix[0] = text_matrix.a;
-  pTextMatrix[1] = text_matrix.c;
-  pTextMatrix[2] = text_matrix.b;
-  pTextMatrix[3] = text_matrix.d;
-}
-
-void CPDF_StreamContentParser::Handle_SetTextRenderMode() {
-  TextRenderingMode mode;
-  if (SetTextRenderingModeFromInt(GetInteger(0), &mode))
-    m_pCurStates->m_TextState.SetTextMode(mode);
-}
-
-void CPDF_StreamContentParser::Handle_SetTextRise() {
-  m_pCurStates->m_TextRise = GetNumber(0);
-}
-
-void CPDF_StreamContentParser::Handle_SetWordSpace() {
-  m_pCurStates->m_TextState.SetWordSpace(GetNumber(0));
-}
-
-void CPDF_StreamContentParser::Handle_SetHorzScale() {
-  if (m_ParamCount != 1) {
-    return;
-  }
-  m_pCurStates->m_TextHorzScale = GetNumber(0) / 100;
-  OnChangeTextMatrix();
-}
-
-void CPDF_StreamContentParser::Handle_MoveToNextLine() {
-  m_pCurStates->m_TextLineY -= m_pCurStates->m_TextLeading;
-  m_pCurStates->m_TextX = m_pCurStates->m_TextLineX;
-  m_pCurStates->m_TextY = m_pCurStates->m_TextLineY;
-}
-
-void CPDF_StreamContentParser::Handle_CurveTo_23() {
-  AddPathPoint(m_PathCurrentX, m_PathCurrentY, FXPT_BEZIERTO);
-  AddPathPoint(GetNumber(3), GetNumber(2), FXPT_BEZIERTO);
-  AddPathPoint(GetNumber(1), GetNumber(0), FXPT_BEZIERTO);
-}
-
-void CPDF_StreamContentParser::Handle_SetLineWidth() {
-  m_pCurStates->m_GraphState.SetLineWidth(GetNumber(0));
-}
-
-void CPDF_StreamContentParser::Handle_Clip() {
-  m_PathClipType = FXFILL_WINDING;
-}
-
-void CPDF_StreamContentParser::Handle_EOClip() {
-  m_PathClipType = FXFILL_ALTERNATE;
-}
-
-void CPDF_StreamContentParser::Handle_CurveTo_13() {
-  AddPathPoint(GetNumber(3), GetNumber(2), FXPT_BEZIERTO);
-  AddPathPoint(GetNumber(1), GetNumber(0), FXPT_BEZIERTO);
-  AddPathPoint(GetNumber(1), GetNumber(0), FXPT_BEZIERTO);
-}
-
-void CPDF_StreamContentParser::Handle_NextLineShowText() {
-  Handle_MoveToNextLine();
-  Handle_ShowText();
-}
-
-void CPDF_StreamContentParser::Handle_NextLineShowText_Space() {
-  m_pCurStates->m_TextState.SetWordSpace(GetNumber(2));
-  m_pCurStates->m_TextState.SetCharSpace(GetNumber(1));
-  Handle_NextLineShowText();
-}
-
-void CPDF_StreamContentParser::Handle_Invalid() {}
-
-void CPDF_StreamContentParser::AddPathPoint(FX_FLOAT x, FX_FLOAT y, int flag) {
-  m_PathCurrentX = x;
-  m_PathCurrentY = y;
-  if (flag == FXPT_MOVETO) {
-    m_PathStartX = x;
-    m_PathStartY = y;
-    if (m_PathPointCount &&
-        m_pPathPoints[m_PathPointCount - 1].m_Flag == FXPT_MOVETO) {
-      m_pPathPoints[m_PathPointCount - 1].m_PointX = x;
-      m_pPathPoints[m_PathPointCount - 1].m_PointY = y;
-      return;
-    }
-  } else if (m_PathPointCount == 0) {
-    return;
-  }
-  m_PathPointCount++;
-  if (m_PathPointCount > m_PathAllocSize) {
-    int newsize = m_PathPointCount + 256;
-    FX_PATHPOINT* pNewPoints = FX_Alloc(FX_PATHPOINT, newsize);
-    if (m_PathAllocSize) {
-      FXSYS_memcpy(pNewPoints, m_pPathPoints,
-                   m_PathAllocSize * sizeof(FX_PATHPOINT));
-      FX_Free(m_pPathPoints);
-    }
-    m_pPathPoints = pNewPoints;
-    m_PathAllocSize = newsize;
-  }
-  m_pPathPoints[m_PathPointCount - 1].m_Flag = flag;
-  m_pPathPoints[m_PathPointCount - 1].m_PointX = x;
-  m_pPathPoints[m_PathPointCount - 1].m_PointY = y;
-}
-
-void CPDF_StreamContentParser::AddPathObject(int FillType, bool bStroke) {
-  int PathPointCount = m_PathPointCount;
-  uint8_t PathClipType = m_PathClipType;
-  m_PathPointCount = 0;
-  m_PathClipType = 0;
-  if (PathPointCount <= 1) {
-    if (PathPointCount && PathClipType) {
-      CPDF_Path path;
-      path.AppendRect(0, 0, 0, 0);
-      m_pCurStates->m_ClipPath.AppendPath(path, FXFILL_WINDING, TRUE);
-    }
-    return;
-  }
-  if (PathPointCount &&
-      m_pPathPoints[PathPointCount - 1].m_Flag == FXPT_MOVETO) {
-    PathPointCount--;
-  }
-  CPDF_Path Path;
-  Path.SetPointCount(PathPointCount);
-  FXSYS_memcpy(Path.GetMutablePoints(), m_pPathPoints,
-               sizeof(FX_PATHPOINT) * PathPointCount);
-  CFX_Matrix matrix = m_pCurStates->m_CTM;
-  matrix.Concat(m_mtContentToUser);
-  if (bStroke || FillType) {
-    std::unique_ptr<CPDF_PathObject> pPathObj(new CPDF_PathObject);
-    pPathObj->m_bStroke = bStroke;
-    pPathObj->m_FillType = FillType;
-    pPathObj->m_Path = Path;
-    pPathObj->m_Matrix = matrix;
-    SetGraphicStates(pPathObj.get(), true, false, true);
-    pPathObj->CalcBoundingBox();
-    m_pObjectHolder->GetPageObjectList()->push_back(std::move(pPathObj));
-  }
-  if (PathClipType) {
-    if (!matrix.IsIdentity()) {
-      Path.Transform(&matrix);
-      matrix.SetIdentity();
-    }
-    m_pCurStates->m_ClipPath.AppendPath(Path, PathClipType, TRUE);
-  }
-}
-
-uint32_t CPDF_StreamContentParser::Parse(const uint8_t* pData,
-                                         uint32_t dwSize,
-                                         uint32_t max_cost) {
-  if (m_Level > _FPDF_MAX_FORM_LEVEL_) {
-    return dwSize;
-  }
-  uint32_t InitObjCount = m_pObjectHolder->GetPageObjectList()->size();
-  CPDF_StreamParser syntax(pData, dwSize, m_pDocument->GetByteStringPool());
-  CPDF_StreamParserAutoClearer auto_clearer(&m_pSyntax, &syntax);
-  while (1) {
-    uint32_t cost = m_pObjectHolder->GetPageObjectList()->size() - InitObjCount;
-    if (max_cost && cost >= max_cost) {
-      break;
-    }
-    switch (syntax.ParseNextElement()) {
-      case CPDF_StreamParser::EndOfData:
-        return m_pSyntax->GetPos();
-      case CPDF_StreamParser::Keyword:
-        OnOperator((char*)syntax.GetWordBuf());
-        ClearAllParams();
-        break;
-      case CPDF_StreamParser::Number:
-        AddNumberParam((char*)syntax.GetWordBuf(), syntax.GetWordSize());
-        break;
-      case CPDF_StreamParser::Name:
-        AddNameParam((const FX_CHAR*)syntax.GetWordBuf() + 1,
-                     syntax.GetWordSize() - 1);
-        break;
-      default:
-        AddObjectParam(syntax.GetObject());
-    }
-  }
-  return m_pSyntax->GetPos();
-}
-
-void CPDF_StreamContentParser::ParsePathObject() {
-  FX_FLOAT params[6] = {};
-  int nParams = 0;
-  int last_pos = m_pSyntax->GetPos();
-  while (1) {
-    CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
-    FX_BOOL bProcessed = TRUE;
-    switch (type) {
-      case CPDF_StreamParser::EndOfData:
-        return;
-      case CPDF_StreamParser::Keyword: {
-        int len = m_pSyntax->GetWordSize();
-        if (len == 1) {
-          switch (m_pSyntax->GetWordBuf()[0]) {
-            case kPathOperatorSubpath:
-              AddPathPoint(params[0], params[1], FXPT_MOVETO);
-              nParams = 0;
-              break;
-            case kPathOperatorLine:
-              AddPathPoint(params[0], params[1], FXPT_LINETO);
-              nParams = 0;
-              break;
-            case kPathOperatorCubicBezier1:
-              AddPathPoint(params[0], params[1], FXPT_BEZIERTO);
-              AddPathPoint(params[2], params[3], FXPT_BEZIERTO);
-              AddPathPoint(params[4], params[5], FXPT_BEZIERTO);
-              nParams = 0;
-              break;
-            case kPathOperatorCubicBezier2:
-              AddPathPoint(m_PathCurrentX, m_PathCurrentY, FXPT_BEZIERTO);
-              AddPathPoint(params[0], params[1], FXPT_BEZIERTO);
-              AddPathPoint(params[2], params[3], FXPT_BEZIERTO);
-              nParams = 0;
-              break;
-            case kPathOperatorCubicBezier3:
-              AddPathPoint(params[0], params[1], FXPT_BEZIERTO);
-              AddPathPoint(params[2], params[3], FXPT_BEZIERTO);
-              AddPathPoint(params[2], params[3], FXPT_BEZIERTO);
-              nParams = 0;
-              break;
-            case kPathOperatorClosePath:
-              Handle_ClosePath();
-              nParams = 0;
-              break;
-            default:
-              bProcessed = FALSE;
-              break;
-          }
-        } else if (len == 2) {
-          if (m_pSyntax->GetWordBuf()[0] == kPathOperatorRectangle[0] &&
-              m_pSyntax->GetWordBuf()[1] == kPathOperatorRectangle[1]) {
-            AddPathRect(params[0], params[1], params[2], params[3]);
-            nParams = 0;
-          } else {
-            bProcessed = FALSE;
-          }
-        } else {
-          bProcessed = FALSE;
-        }
-        if (bProcessed) {
-          last_pos = m_pSyntax->GetPos();
-        }
-        break;
-      }
-      case CPDF_StreamParser::Number: {
-        if (nParams == 6)
-          break;
-
-        int value;
-        bool bInteger = FX_atonum(
-            CFX_ByteStringC(m_pSyntax->GetWordBuf(), m_pSyntax->GetWordSize()),
-            &value);
-        params[nParams++] = bInteger ? (FX_FLOAT)value : *(FX_FLOAT*)&value;
-        break;
-      }
-      default:
-        bProcessed = FALSE;
-    }
-    if (!bProcessed) {
-      m_pSyntax->SetPos(last_pos);
-      return;
-    }
-  }
-}
-
 void PDF_ReplaceAbbr(CPDF_Object* pObj) {
   switch (pObj->GetType()) {
     case CPDF_Object::DICTIONARY: {
diff --git a/core/fpdfapi/page/pageint.h b/core/fpdfapi/page/pageint.h
index 7ab9c6c863..d70ecf1a6e 100644
--- a/core/fpdfapi/page/pageint.h
+++ b/core/fpdfapi/page/pageint.h
@@ -16,6 +16,7 @@
 #include "core/fpdfapi/page/cpdf_contentmark.h"
 #include "core/fpdfapi/page/cpdf_countedobject.h"
 #include "core/fpdfapi/page/cpdf_pageobjectholder.h"
+#include "core/fpdfapi/page/cpdf_streamcontentparser.h"
 #include "core/fpdfapi/parser/cpdf_stream.h"
 #include "core/fxcrt/cfx_string_pool_template.h"
 #include "core/fxcrt/cfx_weak_ptr.h"
@@ -79,202 +80,8 @@ class CPDF_StreamParser {
   CFX_WeakPtr<CFX_ByteStringPool> m_pPool;
 };
 
-#define PARAM_BUF_SIZE 16
-
-struct ContentParam {
-  enum Type { OBJECT = 0, NUMBER, NAME };
-  Type m_Type;
-  union {
-    struct {
-      bool m_bInteger;
-      union {
-        int m_Integer;
-        FX_FLOAT m_Float;
-      };
-    } m_Number;
-    CPDF_Object* m_pObject;
-    struct {
-      int m_Len;
-      char m_Buffer[32];
-    } m_Name;
-  };
-};
-
-#define _FPDF_MAX_FORM_LEVEL_ 30
 #define _FPDF_MAX_TYPE3_FORM_LEVEL_ 4
 
-class CPDF_StreamContentParser {
- public:
-  CPDF_StreamContentParser(CPDF_Document* pDoc,
-                           CPDF_Dictionary* pPageResources,
-                           CPDF_Dictionary* pParentResources,
-                           const CFX_Matrix* pmtContentToUser,
-                           CPDF_PageObjectHolder* pObjectHolder,
-                           CPDF_Dictionary* pResources,
-                           CFX_FloatRect* pBBox,
-                           CPDF_AllStates* pAllStates,
-                           int level);
-  ~CPDF_StreamContentParser();
-
-  CPDF_PageObjectHolder* GetPageObjectHolder() const { return m_pObjectHolder; }
-  CPDF_AllStates* GetCurStates() const { return m_pCurStates.get(); }
-  bool IsColored() const { return m_bColored; }
-  const FX_FLOAT* GetType3Data() const { return m_Type3Data; }
-
-  void AddNumberParam(const FX_CHAR* str, int len);
-  void AddObjectParam(CPDF_Object* pObj);
-  void AddNameParam(const FX_CHAR* name, int size);
-  int GetNextParamPos();
-  void ClearAllParams();
-  CPDF_Object* GetObject(uint32_t index);
-  CFX_ByteString GetString(uint32_t index);
-  FX_FLOAT GetNumber(uint32_t index);
-  int GetInteger(uint32_t index) { return (int32_t)(GetNumber(index)); }
-  void OnOperator(const FX_CHAR* op);
-  void AddTextObject(CFX_ByteString* pText,
-                     FX_FLOAT fInitKerning,
-                     FX_FLOAT* pKerning,
-                     int count);
-
-  void ConvertUserSpace(FX_FLOAT& x, FX_FLOAT& y);
-  void ConvertTextSpace(FX_FLOAT& x, FX_FLOAT& y);
-  void OnChangeTextMatrix();
-  uint32_t Parse(const uint8_t* pData, uint32_t dwSize, uint32_t max_cost);
-  void ParsePathObject();
-  void AddPathPoint(FX_FLOAT x, FX_FLOAT y, int flag);
-  void AddPathRect(FX_FLOAT x, FX_FLOAT y, FX_FLOAT w, FX_FLOAT h);
-  void AddPathObject(int FillType, bool bStroke);
-  CPDF_ImageObject* AddImage(UniqueStream pStream);
-  CPDF_ImageObject* AddImage(uint32_t streamObjNum);
-  CPDF_ImageObject* AddImage(CPDF_Image* pImage);
-
-  void AddForm(CPDF_Stream* pStream);
-  void SetGraphicStates(CPDF_PageObject* pObj,
-                        bool bColor,
-                        bool bText,
-                        bool bGraph);
-  CPDF_Font* FindFont(const CFX_ByteString& name);
-  CPDF_ColorSpace* FindColorSpace(const CFX_ByteString& name);
-  CPDF_Pattern* FindPattern(const CFX_ByteString& name, bool bShading);
-  CPDF_Object* FindResourceObj(const CFX_ByteString& type,
-                               const CFX_ByteString& name);
-
- private:
-  using OpCodes =
-      std::unordered_map<uint32_t, void (CPDF_StreamContentParser::*)()>;
-  static OpCodes InitializeOpCodes();
-
-  // Takes ownership of |pImageObj|, returns unowned pointer to it.
-  CPDF_ImageObject* AddImageObject(std::unique_ptr<CPDF_ImageObject> pImageObj);
-
-  void Handle_CloseFillStrokePath();
-  void Handle_FillStrokePath();
-  void Handle_CloseEOFillStrokePath();
-  void Handle_EOFillStrokePath();
-  void Handle_BeginMarkedContent_Dictionary();
-  void Handle_BeginImage();
-  void Handle_BeginMarkedContent();
-  void Handle_BeginText();
-  void Handle_CurveTo_123();
-  void Handle_ConcatMatrix();
-  void Handle_SetColorSpace_Fill();
-  void Handle_SetColorSpace_Stroke();
-  void Handle_SetDash();
-  void Handle_SetCharWidth();
-  void Handle_SetCachedDevice();
-  void Handle_ExecuteXObject();
-  void Handle_MarkPlace_Dictionary();
-  void Handle_EndImage();
-  void Handle_EndMarkedContent();
-  void Handle_EndText();
-  void Handle_FillPath();
-  void Handle_FillPathOld();
-  void Handle_EOFillPath();
-  void Handle_SetGray_Fill();
-  void Handle_SetGray_Stroke();
-  void Handle_SetExtendGraphState();
-  void Handle_ClosePath();
-  void Handle_SetFlat();
-  void Handle_BeginImageData();
-  void Handle_SetLineJoin();
-  void Handle_SetLineCap();
-  void Handle_SetCMYKColor_Fill();
-  void Handle_SetCMYKColor_Stroke();
-  void Handle_LineTo();
-  void Handle_MoveTo();
-  void Handle_SetMiterLimit();
-  void Handle_MarkPlace();
-  void Handle_EndPath();
-  void Handle_SaveGraphState();
-  void Handle_RestoreGraphState();
-  void Handle_Rectangle();
-  void Handle_SetRGBColor_Fill();
-  void Handle_SetRGBColor_Stroke();
-  void Handle_SetRenderIntent();
-  void Handle_CloseStrokePath();
-  void Handle_StrokePath();
-  void Handle_SetColor_Fill();
-  void Handle_SetColor_Stroke();
-  void Handle_SetColorPS_Fill();
-  void Handle_SetColorPS_Stroke();
-  void Handle_ShadeFill();
-  void Handle_SetCharSpace();
-  void Handle_MoveTextPoint();
-  void Handle_MoveTextPoint_SetLeading();
-  void Handle_SetFont();
-  void Handle_ShowText();
-  void Handle_ShowText_Positioning();
-  void Handle_SetTextLeading();
-  void Handle_SetTextMatrix();
-  void Handle_SetTextRenderMode();
-  void Handle_SetTextRise();
-  void Handle_SetWordSpace();
-  void Handle_SetHorzScale();
-  void Handle_MoveToNextLine();
-  void Handle_CurveTo_23();
-  void Handle_SetLineWidth();
-  void Handle_Clip();
-  void Handle_EOClip();
-  void Handle_CurveTo_13();
-  void Handle_NextLineShowText();
-  void Handle_NextLineShowText_Space();
-  void Handle_Invalid();
-
-  CPDF_Document* const m_pDocument;
-  CPDF_Dictionary* m_pPageResources;
-  CPDF_Dictionary* m_pParentResources;
-  CPDF_Dictionary* m_pResources;
-  CPDF_PageObjectHolder* m_pObjectHolder;
-  int m_Level;
-  CFX_Matrix m_mtContentToUser;
-  CFX_FloatRect m_BBox;
-  ContentParam m_ParamBuf[PARAM_BUF_SIZE];
-  uint32_t m_ParamStartPos;
-  uint32_t m_ParamCount;
-  CPDF_StreamParser* m_pSyntax;
-  std::unique_ptr<CPDF_AllStates> m_pCurStates;
-  CPDF_ContentMark m_CurContentMark;
-  std::vector<std::unique_ptr<CPDF_TextObject>> m_ClipTextList;
-  CPDF_TextObject* m_pLastTextObject;
-  FX_FLOAT m_DefFontSize;
-  FX_PATHPOINT* m_pPathPoints;
-  int m_PathPointCount;
-  int m_PathAllocSize;
-  FX_FLOAT m_PathStartX;
-  FX_FLOAT m_PathStartY;
-  FX_FLOAT m_PathCurrentX;
-  FX_FLOAT m_PathCurrentY;
-  uint8_t m_PathClipType;
-  CFX_ByteString m_LastImageName;
-  CPDF_Image* m_pLastImage;
-  CPDF_Dictionary* m_pLastImageDict;
-  CPDF_Dictionary* m_pLastCloneImageDict;
-  bool m_bColored;
-  FX_FLOAT m_Type3Data[6];
-  bool m_bResourceMissing;
-  std::vector<std::unique_ptr<CPDF_AllStates>> m_StateStack;
-};
-
 class CPDF_ContentParser {
  public:
   enum ParseStatus { Ready, ToBeContinued, Done };