IndirectObjectHolder API updates

core/fpdfapi/fpdf_parser/cpdf_document.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 "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
 
 #include <memory>
 #include <set>
@@ skipping 481 matching lines @@
       m_dwFirstPageObjNum(0),
       m_pDocPage(new CPDF_DocPageData(this)),
       m_pDocRender(new CPDF_DocRenderData(this)) {}
 
 CPDF_Document::~CPDF_Document() {
   delete m_pDocPage;
   CPDF_ModuleMgr::Get()->GetPageModule()->ClearStockFont(this);
 }
 
 void CPDF_Document::LoadDocInternal() {
-  m_LastObjNum = m_pParser->GetLastObjNum();
+  SetLastObjNum(m_pParser->GetLastObjNum());
 
-  CPDF_Object* pRootObj = GetIndirectObject(m_pParser->GetRootObjNum());
+  CPDF_Object* pRootObj = GetOrParseIndirectObject(m_pParser->GetRootObjNum());
   if (!pRootObj)
     return;
 
   m_pRootDict = pRootObj->GetDict();
   if (!m_pRootDict)
     return;
 
-  CPDF_Object* pInfoObj = GetIndirectObject(m_pParser->GetInfoObjNum());
+  CPDF_Object* pInfoObj = GetOrParseIndirectObject(m_pParser->GetInfoObjNum());
   if (pInfoObj)
     m_pInfoDict = pInfoObj->GetDict();
   if (CPDF_Array* pIDArray = m_pParser->GetIDArray()) {
     m_ID1 = pIDArray->GetStringAt(0);
     m_ID2 = pIDArray->GetStringAt(1);
   }
 }
 
 void CPDF_Document::LoadDoc() {
   LoadDocInternal();
@@ skipping 59 matching lines @@
   }
   return nullptr;
 }
 
 CPDF_Dictionary* CPDF_Document::GetPage(int iPage) {
   if (iPage < 0 || iPage >= m_PageList.GetSize())
     return nullptr;
 
   if (m_bLinearized && (iPage == m_iFirstPageNo)) {
     if (CPDF_Dictionary* pDict =
-            ToDictionary(GetIndirectObject(m_dwFirstPageObjNum))) {
+            ToDictionary(GetOrParseIndirectObject(m_dwFirstPageObjNum))) {
       return pDict;
     }
   }
 
   int objnum = m_PageList.GetAt(iPage);
   if (objnum) {
-    if (CPDF_Dictionary* pDict = ToDictionary(GetIndirectObject(objnum)))
+    if (CPDF_Dictionary* pDict = ToDictionary(GetOrParseIndirectObject(objnum)))
       return pDict;
   }
 
   CPDF_Dictionary* pRoot = GetRoot();
   if (!pRoot)
     return nullptr;
 
   CPDF_Dictionary* pPages = pRoot->GetDictBy("Pages");
   if (!pPages)
     return nullptr;
@@ skipping 833 matching lines @@
     }
   }
   pFontDesc->SetAtInteger("StemV", fStemV);
   AddIndirectObject(pFontDesc);
   pFontDict->SetAtReference("FontDescriptor", this, pFontDesc);
   CFRelease(traits);
   CFRelease(languages);
   return LoadFont(pBaseDict);
 }
 #endif  // _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_