Revert "Create m_ContentStream field in CPDF_PageObject."

This reverts commit d3d8287e143daf12a602a919c120b4e0c656abf8.

Reason for revert: Need to revert https://pdfium-review.googlesource.com/c/pdfium/+/33595 that this depends on.

Original change's description:
> Create m_ContentStream field in CPDF_PageObject.
> 
> Content streams are now split and can set nonzero values to identify
> each parsed content stream.
> 
> Bug: pdfium:1051
> Change-Id: Ia2cb1e0997db5264d468043af31f9b41e8d0d349
> Reviewed-on: https://pdfium-review.googlesource.com/33591
> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
> Reviewed-by: Ryan Harrison <rharrison@chromium.org>

TBR=thestig@chromium.org,hnakashima@chromium.org,rharrison@chromium.org

Change-Id: I5046b6a76508fccc0ff04cb7393cae6485dd091f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: pdfium:1051
Reviewed-on: https://pdfium-review.googlesource.com/33990
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>

1 files changed, 8 insertions, 13 deletions

diff --git a/core/fpdfapi/page/cpdf_streamcontentparser.cpp b/core/fpdfapi/page/cpdf_streamcontentparser.cpp
index 051d79ad1d..7e7c337d96 100644
--- a/core/fpdfapi/page/cpdf_streamcontentparser.cpp
+++ b/core/fpdfapi/page/cpdf_streamcontentparser.cpp
@@ -786,8 +786,7 @@ void CPDF_StreamContentParser::AddForm(CPDF_Stream* pStream) {
   CFX_Matrix matrix = m_pCurStates->m_CTM;
   matrix.Concat(m_mtContentToUser);
 
-  auto pFormObj = pdfium::MakeUnique<CPDF_FormObject>(m_CurrentContentStream,
-                                                      std::move(form), matrix);
+  auto pFormObj = pdfium::MakeUnique<CPDF_FormObject>(std::move(form), matrix);
   if (!m_pObjectHolder->BackgroundAlphaNeeded() &&
       pFormObj->form()->BackgroundAlphaNeeded()) {
     m_pObjectHolder->SetBackgroundAlphaNeeded(true);
@@ -802,14 +801,14 @@ CPDF_ImageObject* CPDF_StreamContentParser::AddImage(
   if (!pStream)
     return nullptr;
 
-  auto pImageObj = pdfium::MakeUnique<CPDF_ImageObject>(m_CurrentContentStream);
+  auto pImageObj = pdfium::MakeUnique<CPDF_ImageObject>();
   pImageObj->SetImage(
       pdfium::MakeRetain<CPDF_Image>(m_pDocument.Get(), std::move(pStream)));
   return AddImageObject(std::move(pImageObj));
 }
 
 CPDF_ImageObject* CPDF_StreamContentParser::AddImage(uint32_t streamObjNum) {
-  auto pImageObj = pdfium::MakeUnique<CPDF_ImageObject>(m_CurrentContentStream);
+  auto pImageObj = pdfium::MakeUnique<CPDF_ImageObject>();
   pImageObj->SetImage(m_pDocument->LoadImageFromPageData(streamObjNum));
   return AddImageObject(std::move(pImageObj));
 }
@@ -819,7 +818,7 @@ CPDF_ImageObject* CPDF_StreamContentParser::AddImage(
   if (!pImage)
     return nullptr;
 
-  auto pImageObj = pdfium::MakeUnique<CPDF_ImageObject>(m_CurrentContentStream);
+  auto pImageObj = pdfium::MakeUnique<CPDF_ImageObject>();
   pImageObj->SetImage(
       m_pDocument->GetPageData()->GetImage(pImage->GetStream()->GetObjNum()));
 
@@ -1086,8 +1085,7 @@ void CPDF_StreamContentParser::Handle_ShadeFill() {
 
   CFX_Matrix matrix = m_pCurStates->m_CTM;
   matrix.Concat(m_mtContentToUser);
-  auto pObj = pdfium::MakeUnique<CPDF_ShadingObject>(m_CurrentContentStream,
-                                                     pShading, matrix);
+  auto pObj = pdfium::MakeUnique<CPDF_ShadingObject>(pShading, matrix);
   SetGraphicStates(pObj.get(), false, false, false);
   CFX_FloatRect bbox =
       pObj->m_ClipPath.HasRef() ? pObj->m_ClipPath.GetClipBox() : m_BBox;
@@ -1222,7 +1220,7 @@ void CPDF_StreamContentParser::AddTextObject(ByteString* pStrs,
       pFont->IsType3Font() ? TextRenderingMode::MODE_FILL
                            : m_pCurStates->m_TextState.GetTextMode();
   {
-    auto pText = pdfium::MakeUnique<CPDF_TextObject>(m_CurrentContentStream);
+    auto pText = pdfium::MakeUnique<CPDF_TextObject>();
     m_pLastTextObject = pText.get();
     SetGraphicStates(m_pLastTextObject.Get(), true, true, true);
     if (TextRenderingModeIsStrokeMode(text_mode)) {
@@ -1459,7 +1457,7 @@ void CPDF_StreamContentParser::AddPathObject(int FillType, bool bStroke) {
   CFX_Matrix matrix = m_pCurStates->m_CTM;
   matrix.Concat(m_mtContentToUser);
   if (bStroke || FillType) {
-    auto pPathObj = pdfium::MakeUnique<CPDF_PathObject>(m_CurrentContentStream);
+    auto pPathObj = pdfium::MakeUnique<CPDF_PathObject>();
     pPathObj->m_bStroke = bStroke;
     pPathObj->m_FillType = FillType;
     pPathObj->m_Path = Path;
@@ -1479,10 +1477,7 @@ void CPDF_StreamContentParser::AddPathObject(int FillType, bool bStroke) {
 
 uint32_t CPDF_StreamContentParser::Parse(const uint8_t* pData,
                                          uint32_t dwSize,
-                                         uint32_t max_cost,
-                                         uint32_t content_stream) {
-  m_CurrentContentStream = content_stream;
-
+                                         uint32_t max_cost) {
   if (m_ParsedSet->size() > kMaxFormLevel ||
       pdfium::ContainsKey(*m_ParsedSet, pData))
     return dwSize;