Make CPDF_ImageObject::m_Matrix private.

core/fpdfapi/page/cpdf_streamcontentparser.cpp

 // 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 <memory>
 #include <utility>
@@ skipping 830 matching lines @@
   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->set_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() {}
@@ skipping 799 matching lines @@
       }
       default:
         bProcessed = false;
     }
     if (!bProcessed) {
       m_pSyntax->SetPos(last_pos);
       return;
     }
   }
 }