Remove unused NormalizeString()

 - NormalizeString() has 1 caller:
 - CTextBaseLine::WriteOutput(), which has only 1 caller:
 - CTextPage::WriteOutput(), which has only 1 caller:
 - PDF_GetPageText_Unicode(), which has only 1 caller:
 - PDF_GetPageText(), which has no callers.

Removing this also makes CheckRotate(), NormalizeCompositeChar(),
and CTextPage unused.

Removing those makes CTextBaseline() unused.
Removing that makes txtproc.h unused.

PDF_GetTextStream_Unicode also unused.

... and so on until entire files can be removed.

R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1689843002 .

8 files changed, 6 insertions, 1240 deletions

diff --git a/BUILD.gn b/BUILD.gn
index c793d74df7..4f9f3757f1 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -353,11 +353,8 @@ static_library("fpdfapi") {
 static_library("fpdftext") {
   sources = [
     "core/include/fpdftext/fpdf_text.h",
-    "core/src/fpdftext/fpdf_text.cpp",
     "core/src/fpdftext/fpdf_text_int.cpp",
-    "core/src/fpdftext/fpdf_text_search.cpp",
     "core/src/fpdftext/text_int.h",
-    "core/src/fpdftext/txtproc.h",
     "core/src/fpdftext/unicodenormalization.cpp",
     "core/src/fpdftext/unicodenormalizationdata.cpp",
     "core/src/fpdftext/unicodenormalizationdata.h",
diff --git a/core/include/fpdfapi/fpdf_pageobj.h b/core/include/fpdfapi/fpdf_pageobj.h
index 3336d0b957..7a3d390fed 100644
--- a/core/include/fpdfapi/fpdf_pageobj.h
+++ b/core/include/fpdfapi/fpdf_pageobj.h
@@ -455,7 +455,6 @@ class CPDF_TextObject : public CPDF_PageObject {
   friend class CPDF_RenderStatus;
   friend class CPDF_StreamContentParser;
   friend class CPDF_TextRenderer;
-  friend class CTextPage;
 
   // CPDF_PageObject:
   void CopyData(const CPDF_PageObject* pSrcObject) override;
diff --git a/core/include/fpdftext/fpdf_text.h b/core/include/fpdftext/fpdf_text.h
index 20efb9171f..140fe90bf7 100644
--- a/core/include/fpdftext/fpdf_text.h
+++ b/core/include/fpdftext/fpdf_text.h
@@ -17,27 +17,6 @@ class IPDF_ReflowedPage;
 class IPDF_TextPage;
 class IPDF_TextPageFind;
 
-#define PDF2TXT_AUTO_ROTATE 1
-#define PDF2TXT_AUTO_WIDTH 2
-#define PDF2TXT_KEEP_COLUMN 4
-#define PDF2TXT_USE_OCR 8
-#define PDF2TXT_INCLUDE_INVISIBLE 16
-void PDF_GetPageText(CFX_ByteStringArray& lines,
-                     CPDF_Document* pDoc,
-                     CPDF_Dictionary* pPage,
-                     int iMinWidth,
-                     FX_DWORD flags);
-void PDF_GetPageText_Unicode(CFX_WideStringArray& lines,
-                             CPDF_Document* pDoc,
-                             CPDF_Dictionary* pPage,
-                             int iMinWidth,
-                             FX_DWORD flags);
-void PDF_GetTextStream_Unicode(CFX_WideTextBuf& buffer,
-                               CPDF_Document* pDoc,
-                               CPDF_Dictionary* pPage,
-                               FX_DWORD flags);
-CFX_WideString PDF_GetFirstTextLine_Unicode(CPDF_Document* pDoc,
-                                            CPDF_Dictionary* pPage);
 #define CHAR_ERROR -1
 #define CHAR_NORMAL 0
 #define CHAR_GENERATED 1
@@ -55,7 +34,8 @@ struct FPDF_CHAR_INFO {
   CFX_Matrix m_Matrix;
 };
 
-typedef CFX_ArrayTemplate<CFX_FloatRect> CFX_RectArray;
+using CFX_RectArray = CFX_ArrayTemplate<CFX_FloatRect>;
+
 #define FPDFTEXT_LRTB 0
 #define FPDFTEXT_RLTB 1
 #define FPDFTEXT_TBRL 2
@@ -63,112 +43,78 @@ typedef CFX_ArrayTemplate<CFX_FloatRect> CFX_RectArray;
 #define FPDFTEXT_RIGHT 1
 #define FPDFTEXT_UP -2
 #define FPDFTEXT_DOWN 2
-#define FPDFTEXT_WRITINGMODE_UNKNOW 0
-#define FPDFTEXT_WRITINGMODE_LRTB 1
-#define FPDFTEXT_WRITINGMODE_RLTB 2
-#define FPDFTEXT_WRITINGMODE_TBRL 3
 
 class IPDF_TextPage {
  public:
   static IPDF_TextPage* CreateTextPage(const CPDF_Page* pPage, int flags = 0);
   static IPDF_TextPage* CreateReflowTextPage(IPDF_ReflowedPage* pRefPage);
-
   virtual ~IPDF_TextPage() {}
 
   virtual FX_BOOL ParseTextPage() = 0;
-
   virtual bool IsParsed() const = 0;
-
   virtual int CharIndexFromTextIndex(int TextIndex) const = 0;
-
   virtual int TextIndexFromCharIndex(int CharIndex) const = 0;
-
   virtual int CountChars() const = 0;
-
   virtual void GetCharInfo(int index, FPDF_CHAR_INFO* info) const = 0;
-
   virtual void GetRectArray(int start,
                             int nCount,
                             CFX_RectArray& rectArray) const = 0;
-
   virtual int GetIndexAtPos(CPDF_Point point,
                             FX_FLOAT xTolerance,
                             FX_FLOAT yTolerance) const = 0;
-
   virtual int GetIndexAtPos(FX_FLOAT x,
                             FX_FLOAT y,
                             FX_FLOAT xTolerance,
                             FX_FLOAT yTolerance) const = 0;
-
   virtual CFX_WideString GetTextByRect(const CFX_FloatRect& rect) const = 0;
-
   virtual void GetRectsArrayByRect(const CFX_FloatRect& rect,
                                    CFX_RectArray& resRectArray) const = 0;
-
   virtual int CountRects(int start, int nCount) = 0;
-
   virtual void GetRect(int rectIndex,
                        FX_FLOAT& left,
                        FX_FLOAT& top,
                        FX_FLOAT& right,
                        FX_FLOAT& bottom) const = 0;
-
   virtual FX_BOOL GetBaselineRotate(int rectIndex, int& Rotate) = 0;
-
   virtual FX_BOOL GetBaselineRotate(const CFX_FloatRect& rect, int& Rotate) = 0;
-
   virtual int CountBoundedSegments(FX_FLOAT left,
                                    FX_FLOAT top,
                                    FX_FLOAT right,
                                    FX_FLOAT bottom,
                                    FX_BOOL bContains = FALSE) = 0;
-
   virtual void GetBoundedSegment(int index, int& start, int& count) const = 0;
-
   virtual int GetWordBreak(int index, int direction) const = 0;
-
   virtual CFX_WideString GetPageText(int start = 0, int nCount = -1) const = 0;
 };
 
 #define FPDFTEXT_MATCHCASE 0x00000001
 #define FPDFTEXT_MATCHWHOLEWORD 0x00000002
 #define FPDFTEXT_CONSECUTIVE 0x00000004
+
 class IPDF_TextPageFind {
  public:
-  virtual ~IPDF_TextPageFind() {}
-
   static IPDF_TextPageFind* CreatePageFind(const IPDF_TextPage* pTextPage);
+  virtual ~IPDF_TextPageFind() {}
 
- public:
   virtual FX_BOOL FindFirst(const CFX_WideString& findwhat,
                             int flags,
                             int startPos = 0) = 0;
-
   virtual FX_BOOL FindNext() = 0;
-
   virtual FX_BOOL FindPrev() = 0;
-
   virtual void GetRectArray(CFX_RectArray& rects) const = 0;
-
   virtual int GetCurOrder() const = 0;
-
   virtual int GetMatchedCount() const = 0;
 };
+
 class IPDF_LinkExtract {
  public:
-  virtual ~IPDF_LinkExtract() {}
-
   static IPDF_LinkExtract* CreateLinkExtract();
+  virtual ~IPDF_LinkExtract() {}
 
   virtual FX_BOOL ExtractLinks(const IPDF_TextPage* pTextPage) = 0;
-
- public:
   virtual int CountLinks() const = 0;
-
   virtual CFX_WideString GetURL(int index) const = 0;
-
   virtual void GetBoundedSegment(int index, int& start, int& count) const = 0;
-
   virtual void GetRects(int index, CFX_RectArray& rects) const = 0;
 };
 
diff --git a/core/src/fpdftext/fpdf_text.cpp b/core/src/fpdftext/fpdf_text.cpp
deleted file mode 100644
index c052676a19..0000000000
--- a/core/src/fpdftext/fpdf_text.cpp
+++ /dev/null
@@ -1,792 +0,0 @@
-// Copyright 2014 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 <cctype>
-#include <cwctype>
-#include <memory>
-#include <vector>
-
-#include "core/include/fpdfapi/fpdf_page.h"
-#include "core/include/fpdfapi/fpdf_pageobj.h"
-#include "core/include/fpdfapi/fpdf_resource.h"
-#include "core/include/fpdftext/fpdf_text.h"
-#include "core/include/fxcrt/fx_bidi.h"
-#include "core/include/fxcrt/fx_ucd.h"
-#include "core/src/fpdftext/text_int.h"
-#include "core/src/fpdftext/txtproc.h"
-#include "third_party/base/stl_util.h"
-
-CFX_ByteString CharFromUnicodeAlt(FX_WCHAR unicode,
-                                  int destcp,
-                                  const FX_CHAR* defchar) {
-  if (destcp == 0) {
-    if (unicode < 0x80) {
-      return CFX_ByteString((char)unicode);
-    }
-    const FX_CHAR* altstr = FCS_GetAltStr(unicode);
-    return CFX_ByteString(altstr ? altstr : defchar);
-  }
-  char buf[10];
-  int iDef = 0;
-  int ret = FXSYS_WideCharToMultiByte(destcp, 0, (wchar_t*)&unicode, 1, buf, 10,
-                                      NULL, &iDef);
-  if (ret && !iDef) {
-    return CFX_ByteString(buf, ret);
-  }
-  const FX_CHAR* altstr = FCS_GetAltStr(unicode);
-  return CFX_ByteString(altstr ? altstr : defchar);
-}
-CTextPage::CTextPage() {}
-CTextPage::~CTextPage() {
-  int i;
-  for (i = 0; i < m_BaseLines.GetSize(); i++) {
-    delete m_BaseLines.GetAt(i);
-  }
-  for (i = 0; i < m_TextColumns.GetSize(); i++) {
-    delete m_TextColumns.GetAt(i);
-  }
-}
-void CTextPage::ProcessObject(CPDF_PageObject* pObject) {
-  if (pObject->m_Type != CPDF_PageObject::TEXT) {
-    return;
-  }
-  CPDF_TextObject* pText = (CPDF_TextObject*)pObject;
-  CPDF_Font* pFont = pText->m_TextState.GetFont();
-  int count = pText->CountItems();
-  FX_FLOAT* pPosArray = FX_Alloc2D(FX_FLOAT, count, 2);
-  pText->CalcCharPos(pPosArray);
-
-  FX_FLOAT fontsize_h = pText->m_TextState.GetFontSizeH();
-  FX_FLOAT fontsize_v = pText->m_TextState.GetFontSizeV();
-  FX_DWORD space_charcode = pFont->CharCodeFromUnicode(' ');
-  FX_FLOAT spacew = 0;
-  if (space_charcode != -1) {
-    spacew = fontsize_h * pFont->GetCharWidthF(space_charcode) / 1000;
-  }
-  if (spacew == 0) {
-    spacew = fontsize_h / 4;
-  }
-  if (pText->m_TextState.GetBaselineAngle() != 0) {
-    int cc = 0;
-    CFX_Matrix matrix;
-    pText->GetTextMatrix(&matrix);
-    for (int i = 0; i < pText->m_nChars; i++) {
-      FX_DWORD charcode = pText->m_nChars == 1
-                              ? (FX_DWORD)(uintptr_t)pText->m_pCharCodes
-                              : pText->m_pCharCodes[i];
-      if (charcode == (FX_DWORD)-1) {
-        continue;
-      }
-      FX_RECT char_box;
-      pFont->GetCharBBox(charcode, char_box);
-      FX_FLOAT char_left =
-          pPosArray ? pPosArray[cc * 2]
-                    : char_box.left * pText->m_TextState.GetFontSize() / 1000;
-      FX_FLOAT char_right =
-          pPosArray ? pPosArray[cc * 2 + 1]
-                    : char_box.right * pText->m_TextState.GetFontSize() / 1000;
-      FX_FLOAT char_top =
-          char_box.top * pText->m_TextState.GetFontSize() / 1000;
-      FX_FLOAT char_bottom =
-          char_box.bottom * pText->m_TextState.GetFontSize() / 1000;
-      cc++;
-      FX_FLOAT char_origx, char_origy;
-      matrix.Transform(char_left, 0, char_origx, char_origy);
-      matrix.TransformRect(char_left, char_right, char_top, char_bottom);
-      CFX_ByteString str;
-      pFont->AppendChar(str, charcode);
-      InsertTextBox(NULL, char_origy, char_left, char_right, char_top,
-                    char_bottom, spacew, fontsize_v, str, pFont);
-    }
-    FX_Free(pPosArray);
-    return;
-  }
-  FX_FLOAT ratio_h = fontsize_h / pText->m_TextState.GetFontSize();
-  for (int ii = 0; ii < count * 2; ii++) {
-    pPosArray[ii] *= ratio_h;
-  }
-  FX_FLOAT baseline = pText->m_PosY;
-  CTextBaseLine* pBaseLine = NULL;
-  FX_FLOAT topy = pText->m_Top;
-  FX_FLOAT bottomy = pText->m_Bottom;
-  FX_FLOAT leftx = pText->m_Left;
-  int cc = 0;
-  CFX_ByteString segment;
-  int space_count = 0;
-  FX_FLOAT last_left = 0, last_right = 0, segment_left = 0, segment_right = 0;
-  for (int i = 0; i < pText->m_nChars; i++) {
-    FX_DWORD charcode = pText->m_nChars == 1
-                            ? (FX_DWORD)(uintptr_t)pText->m_pCharCodes
-                            : pText->m_pCharCodes[i];
-    if (charcode == (FX_DWORD)-1) {
-      continue;
-    }
-    FX_FLOAT char_left = pPosArray[cc * 2];
-    FX_FLOAT char_right = pPosArray[cc * 2 + 1];
-    cc++;
-    if (char_left < last_left || (char_left - last_right) > spacew / 2) {
-      pBaseLine = InsertTextBox(pBaseLine, baseline, leftx + segment_left,
-                                leftx + segment_right, topy, bottomy, spacew,
-                                fontsize_v, segment, pFont);
-      segment_left = char_left;
-      segment = "";
-    }
-    if (space_count > 1) {
-      pBaseLine = InsertTextBox(pBaseLine, baseline, leftx + segment_left,
-                                leftx + segment_right, topy, bottomy, spacew,
-                                fontsize_v, segment, pFont);
-      segment = "";
-    } else if (space_count == 1) {
-      pFont->AppendChar(segment, ' ');
-    }
-    if (segment.GetLength() == 0) {
-      segment_left = char_left;
-    }
-    segment_right = char_right;
-    pFont->AppendChar(segment, charcode);
-    space_count = 0;
-    last_left = char_left;
-    last_right = char_right;
-  }
-  if (segment.GetLength())
-    pBaseLine = InsertTextBox(pBaseLine, baseline, leftx + segment_left,
-                              leftx + segment_right, topy, bottomy, spacew,
-                              fontsize_v, segment, pFont);
-  FX_Free(pPosArray);
-}
-CTextBaseLine* CTextPage::InsertTextBox(CTextBaseLine* pBaseLine,
-                                        FX_FLOAT basey,
-                                        FX_FLOAT leftx,
-                                        FX_FLOAT rightx,
-                                        FX_FLOAT topy,
-                                        FX_FLOAT bottomy,
-                                        FX_FLOAT spacew,
-                                        FX_FLOAT fontsize_v,
-                                        CFX_ByteString& str,
-                                        CPDF_Font* pFont) {
-  if (str.GetLength() == 0) {
-    return NULL;
-  }
-  if (!pBaseLine) {
-    int i;
-    for (i = 0; i < m_BaseLines.GetSize(); i++) {
-      CTextBaseLine* pExistLine = m_BaseLines.GetAt(i);
-      if (pExistLine->m_BaseLine == basey) {
-        pBaseLine = pExistLine;
-        break;
-      }
-      if (pExistLine->m_BaseLine < basey) {
-        break;
-      }
-    }
-    if (!pBaseLine) {
-      pBaseLine = new CTextBaseLine;
-      pBaseLine->m_BaseLine = basey;
-      m_BaseLines.InsertAt(i, pBaseLine);
-    }
-  }
-  CFX_WideString text;
-  const FX_CHAR* pStr = str;
-  int len = str.GetLength(), offset = 0;
-  while (offset < len) {
-    FX_DWORD ch = pFont->GetNextChar(pStr, len, offset);
-    CFX_WideString unicode_str = pFont->UnicodeFromCharCode(ch);
-    if (unicode_str.IsEmpty()) {
-      text += (FX_WCHAR)ch;
-    } else {
-      text += unicode_str;
-    }
-  }
-  pBaseLine->InsertTextBox(leftx, rightx, topy, bottomy, spacew, fontsize_v,
-                           text);
-  return pBaseLine;
-}
-void CTextPage::WriteOutput(CFX_WideStringArray& lines, int iMinWidth) {
-  FX_FLOAT lastheight = -1;
-  FX_FLOAT lastbaseline = -1;
-  FX_FLOAT MinLeftX = 1000000;
-  FX_FLOAT MaxRightX = 0;
-  int i;
-  for (i = 0; i < m_BaseLines.GetSize(); i++) {
-    CTextBaseLine* pBaseLine = m_BaseLines.GetAt(i);
-    FX_FLOAT leftx, rightx;
-    if (pBaseLine->GetWidth(leftx, rightx)) {
-      if (leftx < MinLeftX) {
-        MinLeftX = leftx;
-      }
-      if (rightx > MaxRightX) {
-        MaxRightX = rightx;
-      }
-    }
-  }
-  for (i = 0; i < m_BaseLines.GetSize(); i++) {
-    m_BaseLines.GetAt(i)->MergeBoxes();
-  }
-  for (i = 1; i < m_BaseLines.GetSize(); i++) {
-    CTextBaseLine* pBaseLine = m_BaseLines.GetAt(i);
-    CTextBaseLine* pPrevLine = m_BaseLines.GetAt(i - 1);
-    if (pBaseLine->CanMerge(pPrevLine)) {
-      pPrevLine->Merge(pBaseLine);
-      delete pBaseLine;
-      m_BaseLines.RemoveAt(i);
-      i--;
-    }
-  }
-  if (m_bAutoWidth) {
-    int* widths = FX_Alloc(int, m_BaseLines.GetSize());
-    for (i = 0; i < m_BaseLines.GetSize(); i++) {
-      widths[i] = 0;
-      CTextBaseLine* pBaseLine = m_BaseLines.GetAt(i);
-      int TotalChars = 0;
-      FX_FLOAT TotalWidth = 0;
-      int minchars;
-      pBaseLine->CountChars(TotalChars, TotalWidth, minchars);
-      if (TotalChars) {
-        FX_FLOAT charwidth = TotalWidth / TotalChars;
-        widths[i] = (int)((MaxRightX - MinLeftX) / charwidth);
-      }
-      if (widths[i] > 1000) {
-        widths[i] = 1000;
-      }
-      if (widths[i] < minchars) {
-        widths[i] = minchars;
-      }
-    }
-    int AvgWidth = 0, widthcount = 0;
-    for (i = 0; i < m_BaseLines.GetSize(); i++)
-      if (widths[i]) {
-        AvgWidth += widths[i];
-        widthcount++;
-      }
-    AvgWidth = int((FX_FLOAT)AvgWidth / widthcount + 0.5);
-    int MaxWidth = 0;
-    for (i = 0; i < m_BaseLines.GetSize(); i++)
-      if (MaxWidth < widths[i]) {
-        MaxWidth = widths[i];
-      }
-    if (MaxWidth > AvgWidth * 6 / 5) {
-      MaxWidth = AvgWidth * 6 / 5;
-    }
-    FX_Free(widths);
-    if (iMinWidth < MaxWidth) {
-      iMinWidth = MaxWidth;
-    }
-  }
-  for (i = 0; i < m_BaseLines.GetSize(); i++) {
-    m_BaseLines.GetAt(i)->MergeBoxes();
-  }
-  if (m_bKeepColumn) {
-    FindColumns();
-  }
-  for (i = 0; i < m_BaseLines.GetSize(); i++) {
-    CTextBaseLine* pBaseLine = m_BaseLines.GetAt(i);
-    if (lastheight >= 0) {
-      FX_FLOAT dy = lastbaseline - pBaseLine->m_BaseLine;
-      if (dy >= (pBaseLine->m_MaxFontSizeV) * 1.5 || dy >= lastheight * 1.5) {
-        lines.Add(L"");
-      }
-    }
-    lastheight = pBaseLine->m_MaxFontSizeV;
-    lastbaseline = pBaseLine->m_BaseLine;
-    CFX_WideString str;
-    pBaseLine->WriteOutput(str, MinLeftX, MaxRightX - MinLeftX, iMinWidth);
-    lines.Add(str);
-  }
-}
-void NormalizeCompositeChar(FX_WCHAR wChar, CFX_WideString& sDest) {
-  wChar = FX_GetMirrorChar(wChar, TRUE, FALSE);
-  FX_WCHAR* pDst = NULL;
-  FX_STRSIZE nCount = FX_Unicode_GetNormalization(wChar, pDst);
-  if (nCount < 1) {
-    sDest += wChar;
-    return;
-  }
-  pDst = new FX_WCHAR[nCount];
-  FX_Unicode_GetNormalization(wChar, pDst);
-  for (int nIndex = 0; nIndex < nCount; nIndex++) {
-    sDest += pDst[nIndex];
-  }
-  delete[] pDst;
-}
-
-void NormalizeString(CFX_WideString& str) {
-  if (str.GetLength() <= 0) {
-    return;
-  }
-  CFX_WideString sBuffer;
-  std::unique_ptr<CFX_BidiChar> pBidiChar(new CFX_BidiChar);
-  std::vector<FX_WORD> order;
-  FX_BOOL bR2L = FALSE;
-  int32_t start = 0, count = 0, i = 0;
-  int nR2L = 0, nL2R = 0;
-  for (i = 0; i < str.GetLength(); i++) {
-    if (pBidiChar->AppendChar(str.GetAt(i))) {
-      CFX_BidiChar::Direction ret = pBidiChar->GetBidiInfo(&start, &count);
-      order.push_back(start);
-      order.push_back(count);
-      order.push_back(ret);
-      if (!bR2L) {
-        if (ret == CFX_BidiChar::RIGHT) {
-          nR2L++;
-        } else if (ret == CFX_BidiChar::LEFT) {
-          nL2R++;
-        }
-      }
-    }
-  }
-  if (pBidiChar->EndChar()) {
-    CFX_BidiChar::Direction ret = pBidiChar->GetBidiInfo(&start, &count);
-    order.push_back(start);
-    order.push_back(count);
-    order.push_back(ret);
-    if (!bR2L) {
-      if (ret == CFX_BidiChar::RIGHT) {
-        nR2L++;
-      } else if (ret == CFX_BidiChar::LEFT) {
-        nL2R++;
-      }
-    }
-  }
-  if (nR2L > 0 && nR2L >= nL2R) {
-    bR2L = TRUE;
-  }
-  if (bR2L) {
-    int count = pdfium::CollectionSize<int>(order);
-    for (int j = count - 1; j > 0; j -= 3) {
-      int ret = order[j];
-      int count1 = order[j - 1];
-      int start = order[j - 2];
-      if (ret == 2 || ret == 0) {
-        for (int i = start + count1 - 1; i >= start; i--) {
-          NormalizeCompositeChar(str[i], sBuffer);
-        }
-      } else {
-        i = j;
-        FX_BOOL bSymbol = FALSE;
-        while (i > 0 && order[i] != 2) {
-          bSymbol = !order[i];
-          i -= 3;
-        }
-        int end = start + count1;
-        int n = 0;
-        if (bSymbol) {
-          n = i + 6;
-        } else {
-          n = i + 3;
-        }
-        if (n >= j) {
-          for (int m = start; m < end; m++) {
-            sBuffer += str[m];
-          }
-        } else {
-          i = j;
-          j = n;
-          for (; n <= i; n += 3) {
-            int start = order[n - 2];
-            int count1 = order[n - 1];
-            int end = start + count1;
-            for (int m = start; m < end; m++) {
-              sBuffer += str[m];
-            }
-          }
-        }
-      }
-    }
-  } else {
-    int count = pdfium::CollectionSize<int>(order);
-    FX_BOOL bL2R = FALSE;
-    for (int j = 0; j < count; j += 3) {
-      int start = order[j];
-      int count1 = order[j + 1];
-      int ret = order[j + 2];
-      if (ret == 2 || (j == 0 && ret == 0 && !bL2R)) {
-        int i = j + 3;
-        while (bR2L && i < count) {
-          if (order[i + 2] == 1) {
-            break;
-          } else {
-            i += 3;
-          }
-        }
-        if (i == 3) {
-          j = -3;
-          bL2R = TRUE;
-          continue;
-        }
-        int end = str.GetLength() - 1;
-        if (i < count) {
-          end = order[i] - 1;
-        }
-        j = i - 3;
-        for (int n = end; n >= start; n--) {
-          NormalizeCompositeChar(str[i], sBuffer);
-        }
-      } else {
-        int end = start + count1;
-        for (int i = start; i < end; i++) {
-          sBuffer += str[i];
-        }
-      }
-    }
-  }
-  str.Empty();
-  str += sBuffer;
-}
-static FX_BOOL IsNumber(CFX_WideString& str) {
-  for (int i = 0; i < str.GetLength(); i++) {
-    FX_WCHAR ch = str[i];
-    // TODO(dsinclair): --.+ +.-- should probably not be a number.
-    if (!std::iswdigit(ch) && ch != '-' && ch != '+' && ch != '.' && ch != ' ')
-      return FALSE;
-  }
-  return TRUE;
-}
-void CTextPage::FindColumns() {
-  int i;
-  for (i = 0; i < m_BaseLines.GetSize(); i++) {
-    CTextBaseLine* pBaseLine = m_BaseLines.GetAt(i);
-    for (int j = 0; j < pBaseLine->m_TextList.GetSize(); j++) {
-      CTextBox* pTextBox = pBaseLine->m_TextList.GetAt(j);
-      CTextColumn* pColumn = FindColumn(pTextBox->m_Right);
-      if (pColumn) {
-        pColumn->m_AvgPos =
-            (pColumn->m_Count * pColumn->m_AvgPos + pTextBox->m_Right) /
-            (pColumn->m_Count + 1);
-        pColumn->m_Count++;
-      } else {
-        pColumn = new CTextColumn;
-        pColumn->m_Count = 1;
-        pColumn->m_AvgPos = pTextBox->m_Right;
-        pColumn->m_TextPos = -1;
-        m_TextColumns.Add(pColumn);
-      }
-    }
-  }
-  int mincount = m_BaseLines.GetSize() / 4;
-  for (i = 0; i < m_TextColumns.GetSize(); i++) {
-    CTextColumn* pTextColumn = m_TextColumns.GetAt(i);
-    if (pTextColumn->m_Count >= mincount) {
-      continue;
-    }
-    delete pTextColumn;
-    m_TextColumns.RemoveAt(i);
-    i--;
-  }
-  for (i = 0; i < m_BaseLines.GetSize(); i++) {
-    CTextBaseLine* pBaseLine = m_BaseLines.GetAt(i);
-    for (int j = 0; j < pBaseLine->m_TextList.GetSize(); j++) {
-      CTextBox* pTextBox = pBaseLine->m_TextList.GetAt(j);
-      if (IsNumber(pTextBox->m_Text)) {
-        pTextBox->m_pColumn = FindColumn(pTextBox->m_Right);
-      }
-    }
-  }
-}
-CTextColumn* CTextPage::FindColumn(FX_FLOAT xpos) {
-  for (int i = 0; i < m_TextColumns.GetSize(); i++) {
-    CTextColumn* pColumn = m_TextColumns.GetAt(i);
-    if (pColumn->m_AvgPos < xpos + 1 && pColumn->m_AvgPos > xpos - 1) {
-      return pColumn;
-    }
-  }
-  return NULL;
-}
-void CTextPage::BreakSpace(CPDF_TextObject* pTextObj) {}
-CTextBaseLine::CTextBaseLine() {
-  m_Top = -100000;
-  m_Bottom = 100000;
-  m_MaxFontSizeV = 0;
-}
-CTextBaseLine::~CTextBaseLine() {
-  for (int i = 0; i < m_TextList.GetSize(); i++) {
-    delete m_TextList.GetAt(i);
-  }
-}
-void CTextBaseLine::InsertTextBox(FX_FLOAT leftx,
-                                  FX_FLOAT rightx,
-                                  FX_FLOAT topy,
-                                  FX_FLOAT bottomy,
-                                  FX_FLOAT spacew,
-                                  FX_FLOAT fontsize_v,
-                                  const CFX_WideString& text) {
-  if (m_Top < topy) {
-    m_Top = topy;
-  }
-  if (m_Bottom > bottomy) {
-    m_Bottom = bottomy;
-  }
-  if (m_MaxFontSizeV < fontsize_v) {
-    m_MaxFontSizeV = fontsize_v;
-  }
-  int i;
-  for (i = 0; i < m_TextList.GetSize(); i++) {
-    CTextBox* pText = m_TextList.GetAt(i);
-    if (pText->m_Left > leftx) {
-      break;
-    }
-  }
-  CTextBox* pText = new CTextBox;
-  pText->m_Text = text;
-  pText->m_Left = leftx;
-  pText->m_Right = rightx;
-  pText->m_Top = topy;
-  pText->m_Bottom = bottomy;
-  pText->m_SpaceWidth = spacew;
-  pText->m_FontSizeV = fontsize_v;
-  pText->m_pColumn = NULL;
-  m_TextList.InsertAt(i, pText);
-}
-FX_BOOL GetIntersection(FX_FLOAT low1,
-                        FX_FLOAT high1,
-                        FX_FLOAT low2,
-                        FX_FLOAT high2,
-                        FX_FLOAT& interlow,
-                        FX_FLOAT& interhigh);
-FX_BOOL CTextBaseLine::CanMerge(CTextBaseLine* pOther) {
-  FX_FLOAT inter_top, inter_bottom;
-  if (!GetIntersection(m_Bottom, m_Top, pOther->m_Bottom, pOther->m_Top,
-                       inter_bottom, inter_top)) {
-    return FALSE;
-  }
-  FX_FLOAT inter_h = inter_top - inter_bottom;
-  if (inter_h < (m_Top - m_Bottom) / 2 &&
-      inter_h < (pOther->m_Top - pOther->m_Bottom) / 2) {
-    return FALSE;
-  }
-  FX_FLOAT dy = (FX_FLOAT)FXSYS_fabs(m_BaseLine - pOther->m_BaseLine);
-  for (int i = 0; i < m_TextList.GetSize(); i++) {
-    CTextBox* pText = m_TextList.GetAt(i);
-    for (int j = 0; j < pOther->m_TextList.GetSize(); j++) {
-      CTextBox* pOtherText = pOther->m_TextList.GetAt(j);
-      FX_FLOAT inter_left, inter_right;
-      if (!GetIntersection(pText->m_Left, pText->m_Right, pOtherText->m_Left,
-                           pOtherText->m_Right, inter_left, inter_right)) {
-        continue;
-      }
-      FX_FLOAT inter_w = inter_right - inter_left;
-      if (inter_w < pText->m_SpaceWidth / 2 &&
-          inter_w < pOtherText->m_SpaceWidth / 2) {
-        continue;
-      }
-      if (dy >= (pText->m_Bottom - pText->m_Top) / 2 ||
-          dy >= (pOtherText->m_Bottom - pOtherText->m_Top) / 2) {
-        return FALSE;
-      }
-    }
-  }
-  return TRUE;
-}
-void CTextBaseLine::Merge(CTextBaseLine* pOther) {
-  for (int i = 0; i < pOther->m_TextList.GetSize(); i++) {
-    CTextBox* pText = pOther->m_TextList.GetAt(i);
-    InsertTextBox(pText->m_Left, pText->m_Right, pText->m_Top, pText->m_Bottom,
-                  pText->m_SpaceWidth, pText->m_FontSizeV, pText->m_Text);
-  }
-}
-FX_BOOL CTextBaseLine::GetWidth(FX_FLOAT& leftx, FX_FLOAT& rightx) {
-  int i;
-  for (i = 0; i < m_TextList.GetSize(); i++) {
-    CTextBox* pText = m_TextList.GetAt(i);
-    if (pText->m_Text != L" ") {
-      break;
-    }
-  }
-  if (i == m_TextList.GetSize()) {
-    return FALSE;
-  }
-  CTextBox* pText = m_TextList.GetAt(i);
-  leftx = pText->m_Left;
-  for (i = m_TextList.GetSize() - 1; i >= 0; i--) {
-    CTextBox* pText = m_TextList.GetAt(i);
-    if (pText->m_Text != L" ") {
-      break;
-    }
-  }
-  pText = m_TextList.GetAt(i);
-  rightx = pText->m_Right;
-  return TRUE;
-}
-void CTextBaseLine::MergeBoxes() {
-  int i = 0;
-  while (1) {
-    if (i >= m_TextList.GetSize() - 1) {
-      break;
-    }
-    CTextBox* pThisText = m_TextList.GetAt(i);
-    CTextBox* pNextText = m_TextList.GetAt(i + 1);
-    FX_FLOAT dx = pNextText->m_Left - pThisText->m_Right;
-    FX_FLOAT spacew = (pThisText->m_SpaceWidth == 0.0)
-                          ? pNextText->m_SpaceWidth
-                          : pThisText->m_SpaceWidth;
-    if (spacew > 0.0 && dx < spacew * 2) {
-      pThisText->m_Right = pNextText->m_Right;
-      if (dx > spacew * 1.5) {
-        pThisText->m_Text += L"  ";
-      } else if (dx > spacew / 3) {
-        pThisText->m_Text += L' ';
-      }
-      pThisText->m_Text += pNextText->m_Text;
-      pThisText->m_SpaceWidth =
-          pNextText->m_SpaceWidth == 0.0 ? spacew : pNextText->m_SpaceWidth;
-      m_TextList.RemoveAt(i + 1);
-      delete pNextText;
-    } else {
-      i++;
-    }
-  }
-}
-void CTextBaseLine::WriteOutput(CFX_WideString& str,
-                                FX_FLOAT leftx,
-                                FX_FLOAT pagewidth,
-                                int iTextWidth) {
-  int lastpos = -1;
-  for (int i = 0; i < m_TextList.GetSize(); i++) {
-    CTextBox* pText = m_TextList.GetAt(i);
-    int xpos;
-    if (pText->m_pColumn) {
-      xpos =
-          (int)((pText->m_pColumn->m_AvgPos - leftx) * iTextWidth / pagewidth +
-                0.5);
-      xpos -= pText->m_Text.GetLength();
-    } else {
-      xpos = (int)((pText->m_Left - leftx) * iTextWidth / pagewidth + 0.5);
-    }
-    if (xpos <= lastpos) {
-      xpos = lastpos + 1;
-    }
-    for (int j = lastpos + 1; j < xpos; j++) {
-      str += ' ';
-    }
-    CFX_WideString sSrc(pText->m_Text);
-    NormalizeString(sSrc);
-    str += sSrc;
-    str += ' ';
-    lastpos = xpos + pText->m_Text.GetLength();
-  }
-}
-void CTextBaseLine::CountChars(int& count, FX_FLOAT& width, int& minchars) {
-  minchars = 0;
-  for (int i = 0; i < m_TextList.GetSize(); i++) {
-    CTextBox* pText = m_TextList.GetAt(i);
-    if (pText->m_Right - pText->m_Left < 0.002) {
-      continue;
-    }
-    count += pText->m_Text.GetLength();
-    width += pText->m_Right - pText->m_Left;
-    minchars += pText->m_Text.GetLength() + 1;
-  }
-}
-#define PI 3.1415926535897932384626433832795
-static void CheckRotate(CPDF_Page& page, CFX_FloatRect& page_bbox) {
-  int total_count = 0, rotated_count[3] = {0, 0, 0};
-  FX_POSITION pos = page.GetFirstObjectPosition();
-  while (pos) {
-    CPDF_PageObject* pObj = page.GetNextObject(pos);
-    if (pObj->m_Type != CPDF_PageObject::TEXT) {
-      continue;
-    }
-    total_count++;
-    CPDF_TextObject* pText = (CPDF_TextObject*)pObj;
-    FX_FLOAT angle = pText->m_TextState.GetBaselineAngle();
-    if (angle == 0.0) {
-      continue;
-    }
-    int degree = (int)(angle * 180 / PI + 0.5);
-    if (degree % 90) {
-      continue;
-    }
-    if (degree < 0) {
-      degree += 360;
-    }
-    int index = degree / 90 % 3 - 1;
-    if (index < 0) {
-      continue;
-    }
-    rotated_count[index]++;
-  }
-  if (total_count == 0) {
-    return;
-  }
-  CFX_Matrix matrix;
-  if (rotated_count[0] > total_count * 2 / 3) {
-    matrix.Set(0, -1, 1, 0, 0, page.GetPageHeight());
-  } else if (rotated_count[1] > total_count * 2 / 3) {
-    matrix.Set(-1, 0, 0, -1, page.GetPageWidth(), page.GetPageHeight());
-  } else if (rotated_count[2] > total_count * 2 / 3) {
-    matrix.Set(0, 1, -1, 0, page.GetPageWidth(), 0);
-  } else {
-    return;
-  }
-  page.Transform(matrix);
-  page_bbox.Transform(&matrix);
-}
-void PDF_GetPageText_Unicode(CFX_WideStringArray& lines,
-                             CPDF_Document* pDoc,
-                             CPDF_Dictionary* pPage,
-                             int iMinWidth,
-                             FX_DWORD flags) {
-  lines.RemoveAll();
-  if (!pPage) {
-    return;
-  }
-  CPDF_Page page;
-  page.Load(pDoc, pPage);
-  CPDF_ParseOptions options;
-  options.m_bTextOnly = TRUE;
-  options.m_bSeparateForm = FALSE;
-  page.ParseContent(&options);
-  CFX_FloatRect page_bbox = page.GetPageBBox();
-  if (flags & PDF2TXT_AUTO_ROTATE) {
-    CheckRotate(page, page_bbox);
-  }
-  CTextPage texts;
-  texts.m_bAutoWidth = flags & PDF2TXT_AUTO_WIDTH;
-  texts.m_bKeepColumn = flags & PDF2TXT_KEEP_COLUMN;
-  texts.m_bBreakSpace = TRUE;
-  FX_POSITION pos = page.GetFirstObjectPosition();
-  while (pos) {
-    CPDF_PageObject* pObject = page.GetNextObject(pos);
-    if (!(flags & PDF2TXT_INCLUDE_INVISIBLE)) {
-      CFX_FloatRect rect(pObject->m_Left, pObject->m_Bottom, pObject->m_Right,
-                         pObject->m_Top);
-      if (!page_bbox.Contains(rect)) {
-        continue;
-      }
-    }
-    texts.ProcessObject(pObject);
-  }
-  texts.WriteOutput(lines, iMinWidth);
-}
-void PDF_GetPageText(CFX_ByteStringArray& lines,
-                     CPDF_Document* pDoc,
-                     CPDF_Dictionary* pPage,
-                     int iMinWidth,
-                     FX_DWORD flags) {
-  lines.RemoveAll();
-  CFX_WideStringArray wlines;
-  PDF_GetPageText_Unicode(wlines, pDoc, pPage, iMinWidth, flags);
-  for (int i = 0; i < wlines.GetSize(); i++) {
-    CFX_WideString wstr = wlines[i];
-    CFX_ByteString str;
-    for (int c = 0; c < wstr.GetLength(); c++) {
-      str += CharFromUnicodeAlt(wstr[c], FXSYS_GetACP(), "?");
-    }
-    lines.Add(str);
-  }
-}
-void PDF_GetTextStream_Unicode(CFX_WideTextBuf& buffer,
-                               CPDF_Document* pDoc,
-                               CPDF_Dictionary* pPage,
-                               FX_DWORD flags) {
-  buffer.EstimateSize(0, 10240);
-  CPDF_Page page;
-  page.Load(pDoc, pPage);
-  CPDF_ParseOptions options;
-  options.m_bTextOnly = TRUE;
-  options.m_bSeparateForm = FALSE;
-  page.ParseContent(&options);
-  GetTextStream_Unicode(buffer, &page, TRUE);
-}
diff --git a/core/src/fpdftext/fpdf_text_search.cpp b/core/src/fpdftext/fpdf_text_search.cpp
deleted file mode 100644
index 5bbfbd9198..0000000000
--- a/core/src/fpdftext/fpdf_text_search.cpp
+++ /dev/null
@@ -1,292 +0,0 @@
-// Copyright 2014 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/include/fpdfapi/fpdf_page.h"
-#include "core/include/fpdfapi/fpdf_pageobj.h"
-#include "core/src/fpdftext/text_int.h"
-
-class CPDF_TextStream {
- public:
-  CPDF_TextStream(CFX_WideTextBuf& buffer, FX_BOOL bUseLF)
-      : m_Buffer(buffer), m_bUseLF(bUseLF), m_pLastObj(nullptr) {}
-  ~CPDF_TextStream() {}
-  FX_BOOL ProcessObject(const CPDF_TextObject* pObj, FX_BOOL bFirstLine);
-
-  CFX_WideTextBuf& m_Buffer;
-  FX_BOOL m_bUseLF;
-  const CPDF_TextObject* m_pLastObj;
-};
-FX_BOOL FPDFText_IsSameTextObject(const CPDF_TextObject* pTextObj1,
-                                  const CPDF_TextObject* pTextObj2) {
-  if (!pTextObj1 || !pTextObj2) {
-    return FALSE;
-  }
-  CFX_FloatRect rcPreObj(pTextObj2->m_Left, pTextObj2->m_Bottom,
-                         pTextObj2->m_Right, pTextObj2->m_Top);
-  CFX_FloatRect rcCurObj(pTextObj1->m_Left, pTextObj1->m_Bottom,
-                         pTextObj1->m_Right, pTextObj1->m_Top);
-  if (rcPreObj.IsEmpty() && rcCurObj.IsEmpty()) {
-    return TRUE;
-  }
-  if (!rcPreObj.IsEmpty() || !rcCurObj.IsEmpty()) {
-    rcPreObj.Intersect(rcCurObj);
-    if (rcPreObj.IsEmpty()) {
-      return FALSE;
-    }
-    if (FXSYS_fabs(rcPreObj.Width() - rcCurObj.Width()) >
-        rcCurObj.Width() / 2) {
-      return FALSE;
-    }
-    if (pTextObj2->GetFontSize() != pTextObj1->GetFontSize()) {
-      return FALSE;
-    }
-  }
-  int nPreCount = pTextObj2->CountItems();
-  int nCurCount = pTextObj1->CountItems();
-  if (nPreCount != nCurCount) {
-    return FALSE;
-  }
-  for (int i = 0; i < nPreCount; i++) {
-    CPDF_TextObjectItem itemPer, itemCur;
-    pTextObj2->GetItemInfo(i, &itemPer);
-    pTextObj1->GetItemInfo(i, &itemCur);
-    if (itemCur.m_CharCode != itemPer.m_CharCode) {
-      return FALSE;
-    }
-  }
-  return TRUE;
-}
-int GetCharWidth(FX_DWORD charCode, CPDF_Font* pFont) {
-  if (charCode == -1) {
-    return 0;
-  }
-  int w = pFont->GetCharWidthF(charCode);
-  if (w == 0) {
-    CFX_ByteString str;
-    pFont->AppendChar(str, charCode);
-    w = pFont->GetStringWidth(str, 1);
-    if (w == 0) {
-      FX_RECT BBox;
-      pFont->GetCharBBox(charCode, BBox);
-      w = BBox.right - BBox.left;
-    }
-  }
-  return w;
-}
-int FPDFText_ProcessInterObj(const CPDF_TextObject* pPrevObj,
-                             const CPDF_TextObject* pObj) {
-  if (FPDFText_IsSameTextObject(pPrevObj, pObj)) {
-    return -1;
-  }
-  CPDF_TextObjectItem item;
-  int nItem = pPrevObj->CountItems();
-  pPrevObj->GetItemInfo(nItem - 1, &item);
-  FX_WCHAR preChar = 0, curChar = 0;
-  CFX_WideString wstr =
-      pPrevObj->GetFont()->UnicodeFromCharCode(item.m_CharCode);
-  if (wstr.GetLength()) {
-    preChar = wstr.GetAt(0);
-  }
-  FX_FLOAT last_pos = item.m_OriginX;
-  int nLastWidth = GetCharWidth(item.m_CharCode, pPrevObj->GetFont());
-  FX_FLOAT last_width = nLastWidth * pPrevObj->GetFontSize() / 1000;
-  last_width = FXSYS_fabs(last_width);
-  pObj->GetItemInfo(0, &item);
-  wstr = pObj->GetFont()->UnicodeFromCharCode(item.m_CharCode);
-  if (wstr.GetLength()) {
-    curChar = wstr.GetAt(0);
-  }
-  int nThisWidth = GetCharWidth(item.m_CharCode, pObj->GetFont());
-  FX_FLOAT this_width = nThisWidth * pObj->GetFontSize() / 1000;
-  this_width = FXSYS_fabs(this_width);
-  FX_FLOAT threshold =
-      last_width > this_width ? last_width / 4 : this_width / 4;
-  CFX_Matrix prev_matrix, prev_reverse;
-  pPrevObj->GetTextMatrix(&prev_matrix);
-  prev_reverse.SetReverse(prev_matrix);
-  FX_FLOAT x = pObj->GetPosX(), y = pObj->GetPosY();
-  prev_reverse.Transform(x, y);
-  if (FXSYS_fabs(y) > threshold * 2) {
-    return 2;
-  }
-  threshold = (FX_FLOAT)(nLastWidth > nThisWidth ? nLastWidth : nThisWidth);
-  threshold = threshold > 400
-                  ? (threshold < 700 ? threshold / 4 : threshold / 5)
-                  : (threshold / 2);
-  threshold *= nLastWidth > nThisWidth ? FXSYS_fabs(pPrevObj->GetFontSize())
-                                       : FXSYS_fabs(pObj->GetFontSize());
-  threshold /= 1000;
-  if (FXSYS_fabs(last_pos + last_width - x) > threshold && curChar != L' ' &&
-      preChar != L' ')
-    if (curChar != L' ' && preChar != L' ') {
-      if ((x - last_pos - last_width) > threshold ||
-          (last_pos - x - last_width) > threshold) {
-        return 1;
-      }
-      if (x < 0 && (last_pos - x - last_width) > threshold) {
-        return 1;
-      }
-      if ((x - last_pos - last_width) > this_width ||
-          (x - last_pos - this_width) > last_width) {
-        return 1;
-      }
-    }
-  if (last_pos + last_width > x + this_width && curChar == L' ') {
-    return 3;
-  }
-  return 0;
-}
-FX_BOOL CPDF_TextStream::ProcessObject(const CPDF_TextObject* pObj,
-                                       FX_BOOL bFirstLine) {
-  CPDF_Font* pFont = pObj->GetFont();
-  CFX_Matrix matrix;
-  pObj->GetTextMatrix(&matrix);
-  int item_index = 0;
-  if (m_pLastObj) {
-    int result = FPDFText_ProcessInterObj(m_pLastObj, pObj);
-    if (result == 2) {
-      int len = m_Buffer.GetLength();
-      if (len && m_bUseLF && m_Buffer.GetBuffer()[len - 1] == L'-') {
-        m_Buffer.Delete(len - 1, 1);
-      } else {
-        if (bFirstLine) {
-          return TRUE;
-        }
-        if (m_bUseLF) {
-          m_Buffer.AppendChar(L'\r');
-          m_Buffer.AppendChar(L'\n');
-        } else {
-          m_Buffer.AppendChar(' ');
-        }
-      }
-    } else if (result == 1) {
-      m_Buffer.AppendChar(L' ');
-    } else if (result == -1) {
-      m_pLastObj = pObj;
-      return FALSE;
-    } else if (result == 3) {
-      item_index = 1;
-    }
-  }
-  m_pLastObj = pObj;
-  int nItems = pObj->CountItems();
-  FX_FLOAT Ignorekerning = 0;
-  for (int i = 1; i < nItems - 1; i += 2) {
-    CPDF_TextObjectItem item;
-    pObj->GetItemInfo(i, &item);
-    if (item.m_CharCode == (FX_DWORD)-1) {
-      if (i == 1) {
-        Ignorekerning = item.m_OriginX;
-      } else if (Ignorekerning > item.m_OriginX) {
-        Ignorekerning = item.m_OriginX;
-      }
-    } else {
-      Ignorekerning = 0;
-      break;
-    }
-  }
-  FX_FLOAT spacing = 0;
-  for (; item_index < nItems; item_index++) {
-    CPDF_TextObjectItem item;
-    pObj->GetItemInfo(item_index, &item);
-    if (item.m_CharCode == (FX_DWORD)-1) {
-      CFX_WideString wstr = m_Buffer.GetWideString();
-      if (wstr.IsEmpty() || wstr.GetAt(wstr.GetLength() - 1) == L' ') {
-        continue;
-      }
-      FX_FLOAT fontsize_h = pObj->m_TextState.GetFontSizeH();
-      spacing = -fontsize_h * (item.m_OriginX - Ignorekerning) / 1000;
-      continue;
-    }
-    FX_FLOAT charSpace = pObj->m_TextState.GetObject()->m_CharSpace;
-    if (nItems > 3 && !spacing) {
-      charSpace = 0;
-    }
-    if ((spacing || charSpace) && item_index > 0) {
-      int last_width = 0;
-      FX_FLOAT fontsize_h = pObj->m_TextState.GetFontSizeH();
-      FX_DWORD space_charcode = pFont->CharCodeFromUnicode(' ');
-      FX_FLOAT threshold = 0;
-      if (space_charcode != -1) {
-        threshold = fontsize_h * pFont->GetCharWidthF(space_charcode) / 1000;
-      }
-      if (threshold > fontsize_h / 3) {
-        threshold = 0;
-      } else {
-        threshold /= 2;
-      }
-      if (threshold == 0) {
-        threshold = fontsize_h;
-        int this_width = FXSYS_abs(GetCharWidth(item.m_CharCode, pFont));
-        threshold = this_width > last_width ? (FX_FLOAT)this_width
-                                            : (FX_FLOAT)last_width;
-        int nDivide = 6;
-        if (threshold < 300) {
-          nDivide = 2;
-        } else if (threshold < 500) {
-          nDivide = 4;
-        } else if (threshold < 700) {
-          nDivide = 5;
-        }
-        threshold = threshold / nDivide;
-        threshold = fontsize_h * threshold / 1000;
-      }
-      if (charSpace > 0.001) {
-        spacing += matrix.TransformDistance(charSpace);
-      } else if (charSpace < -0.001) {
-        spacing -= matrix.TransformDistance(FXSYS_fabs(charSpace));
-      }
-      if (threshold && (spacing && spacing >= threshold)) {
-        m_Buffer.AppendChar(L' ');
-      }
-      if (item.m_CharCode == (FX_DWORD)-1) {
-        continue;
-      }
-      spacing = 0;
-    }
-    CFX_WideString unicode_str = pFont->UnicodeFromCharCode(item.m_CharCode);
-    if (unicode_str.IsEmpty()) {
-      m_Buffer.AppendChar((FX_WCHAR)item.m_CharCode);
-    } else {
-      m_Buffer << unicode_str;
-    }
-  }
-  return FALSE;
-}
-void GetTextStream_Unicode(CFX_WideTextBuf& buffer,
-                           CPDF_PageObjectList* pPage,
-                           FX_BOOL bUseLF) {
-  CPDF_TextStream textstream(buffer, bUseLF);
-  FX_POSITION pos = pPage->GetFirstObjectPosition();
-  while (pos) {
-    CPDF_PageObject* pObject = pPage->GetNextObject(pos);
-    if (pObject && pObject->m_Type == CPDF_PageObject::TEXT)
-      textstream.ProcessObject((CPDF_TextObject*)pObject, FALSE);
-  }
-}
-CFX_WideString PDF_GetFirstTextLine_Unicode(CPDF_Document* pDoc,
-                                            CPDF_Dictionary* pPage) {
-  CFX_WideTextBuf buffer;
-  buffer.EstimateSize(0, 1024);
-  CPDF_Page page;
-  page.Load(pDoc, pPage);
-  CPDF_ParseOptions options;
-  options.m_bTextOnly = TRUE;
-  options.m_bSeparateForm = FALSE;
-  page.ParseContent(&options);
-  CPDF_TextStream textstream(buffer, FALSE);
-  FX_POSITION pos = page.GetFirstObjectPosition();
-  while (pos) {
-    CPDF_PageObject* pObject = page.GetNextObject(pos);
-    if (pObject->m_Type != CPDF_PageObject::TEXT) {
-      continue;
-    }
-    if (textstream.ProcessObject((CPDF_TextObject*)pObject, TRUE)) {
-      break;
-    }
-  }
-  return buffer.GetWideString();
-}
diff --git a/core/src/fpdftext/text_int.h b/core/src/fpdftext/text_int.h
index c420bc7702..93c22736ef 100644
--- a/core/src/fpdftext/text_int.h
+++ b/core/src/fpdftext/text_int.h
@@ -237,10 +237,5 @@ class CPDF_LinkExtract : public IPDF_LinkExtract {
 };
 
 FX_STRSIZE FX_Unicode_GetNormalization(FX_WCHAR wch, FX_WCHAR* pDst);
-void NormalizeString(CFX_WideString& str);
-void NormalizeCompositeChar(FX_WCHAR wChar, CFX_WideString& sDest);
-void GetTextStream_Unicode(CFX_WideTextBuf& buffer,
-                           CPDF_PageObjectList* pPage,
-                           FX_BOOL bUseLF);
 
 #endif  // CORE_SRC_FPDFTEXT_TEXT_INT_H_
diff --git a/core/src/fpdftext/txtproc.h b/core/src/fpdftext/txtproc.h
deleted file mode 100644
index 27cec5d0a6..0000000000
--- a/core/src/fpdftext/txtproc.h
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright 2014 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_SRC_FPDFTEXT_TXTPROC_H_
-#define CORE_SRC_FPDFTEXT_TXTPROC_H_
-
-class CTextColumn {
- public:
-  FX_FLOAT m_AvgPos;
-  int m_Count;
-  int m_TextPos;
-};
-class CTextBox {
- public:
-  CFX_WideString m_Text;
-  FX_FLOAT m_Left;
-  FX_FLOAT m_Right;
-  FX_FLOAT m_SpaceWidth;
-  FX_FLOAT m_Top;
-  FX_FLOAT m_Bottom;
-  FX_FLOAT m_FontSizeV;
-  CTextColumn* m_pColumn;
-};
-class CTextBaseLine {
- public:
-  CTextBaseLine();
-  ~CTextBaseLine();
-  void InsertTextBox(FX_FLOAT leftx,
-                     FX_FLOAT rightx,
-                     FX_FLOAT topy,
-                     FX_FLOAT bottomy,
-                     FX_FLOAT spacew,
-                     FX_FLOAT fontsize_v,
-                     const CFX_WideString& str);
-  FX_BOOL GetWidth(FX_FLOAT& leftx, FX_FLOAT& rightx);
-  FX_BOOL CanMerge(CTextBaseLine* pOther);
-  void Merge(CTextBaseLine* pOther);
-  void MergeBoxes();
-  void CountChars(int& count, FX_FLOAT& width, int& minchars);
-  void WriteOutput(CFX_WideString& str,
-                   FX_FLOAT leftx,
-                   FX_FLOAT width,
-                   int iWidth);
-  FX_FLOAT m_BaseLine;
-  FX_FLOAT m_Top;
-  FX_FLOAT m_Bottom;
-  FX_FLOAT m_MaxFontSizeV;
-  CFX_ArrayTemplate<CTextBox*> m_TextList;
-};
-class CPDF_PageObject;
-class CPDF_TextObject;
-class CTextPage {
- public:
-  CTextPage();
-  ~CTextPage();
-  void ProcessObject(CPDF_PageObject* pObj);
-  CTextBaseLine* InsertTextBox(CTextBaseLine* pBaseLine,
-                               FX_FLOAT basey,
-                               FX_FLOAT leftx,
-                               FX_FLOAT rightx,
-                               FX_FLOAT topy,
-                               FX_FLOAT bottomy,
-                               FX_FLOAT spacew,
-                               FX_FLOAT fontsize_v,
-                               CFX_ByteString& str,
-                               CPDF_Font* pFont);
-  void WriteOutput(CFX_WideStringArray& lines, int iMinWidth);
-  FX_BOOL m_bAutoWidth;
-  FX_BOOL m_bKeepColumn;
-  FX_BOOL m_bBreakSpace;
-
- private:
-  void FindColumns();
-  CTextColumn* FindColumn(FX_FLOAT xpos);
-  void BreakSpace(CPDF_TextObject* pTextObj);
-
-  CFX_ArrayTemplate<CTextBaseLine*> m_BaseLines;
-  CFX_ArrayTemplate<CTextColumn*> m_TextColumns;
-};
-
-#endif  // CORE_SRC_FPDFTEXT_TXTPROC_H_
diff --git a/pdfium.gyp b/pdfium.gyp
index 09c9028e0a..0c40eff791 100644
--- a/pdfium.gyp
+++ b/pdfium.gyp
@@ -330,11 +330,8 @@
       'type': 'static_library',
       'sources': [
         'core/include/fpdftext/fpdf_text.h',
-        'core/src/fpdftext/fpdf_text.cpp',
         'core/src/fpdftext/fpdf_text_int.cpp',
-        'core/src/fpdftext/fpdf_text_search.cpp',
         'core/src/fpdftext/text_int.h',
-        'core/src/fpdftext/txtproc.h',
         'core/src/fpdftext/unicodenormalization.cpp',
         'core/src/fpdftext/unicodenormalizationdata.cpp',
         'core/src/fpdftext/unicodenormalizationdata.h',