Refactor CPDF_Object and its subclasses.

core/src/fpdfapi/fpdf_page/fpdf_page_image.cpp

 // 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 "pageint.h"
 
 #include "core/include/fpdfapi/fpdf_page.h"
 #include "core/include/fpdfapi/fpdf_pageobj.h"
@@ skipping 31 matching lines @@
 void CPDF_Image::Release() {
   if (m_bInline || (m_pStream && m_pStream->GetObjNum() == 0)) {
     delete this;
   }
 }
 CPDF_Image* CPDF_Image::Clone() {
   if (m_pStream->GetObjNum())
     return m_pDocument->GetPageData()->GetImage(m_pStream);
 
   CPDF_Image* pImage = new CPDF_Image(m_pDocument);
-  pImage->LoadImageF(ToStream(m_pStream->CPDF_Object::Clone()), m_bInline);
+  pImage->LoadImageF(ToStream(m_pStream->Clone()), m_bInline);
   if (m_bInline)
     pImage->SetInlineDict(ToDictionary(m_pInlineDict->Clone(TRUE)));
 
   return pImage;
 }
 CPDF_Image::CPDF_Image(CPDF_Document* pDoc) {
   m_pDocument = pDoc;
   m_pStream = NULL;
   m_pOC = NULL;
   m_bInline = FALSE;
@@ skipping 24 matching lines @@
     m_pInlineDict = ToDictionary(pDict->Clone());
   }
   m_pOC = pDict->GetDictBy("OC");
   m_bIsMask =
       !pDict->KeyExist("ColorSpace") || pDict->GetIntegerBy("ImageMask");
   m_bInterpolate = pDict->GetIntegerBy("Interpolate");
   m_Height = pDict->GetIntegerBy("Height");
   m_Width = pDict->GetIntegerBy("Width");
   return TRUE;
 }