Split off CPDF_Parser and CPDF_SimpleParser into .h/.cpp files

core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.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/include/fpdfapi/fpdf_objects.h"
 
 #include <algorithm>
 
+#include "core/include/fpdfapi/cpdf_parser.h"
 #include "core/include/fpdfapi/fpdf_parser.h"
 #include "core/include/fxcrt/fx_string.h"
 #include "third_party/base/stl_util.h"
 
 CPDF_Object::~CPDF_Object() {}
 
 CPDF_Object* CPDF_Object::GetDirect() const {
   return const_cast<CPDF_Object*>(this);
 }
 
@@ skipping 1110 matching lines @@
       pObj->Destroy();
       return FALSE;
     }
     it->second->Destroy();
   }
   pObj->m_ObjNum = objnum;
   m_IndirectObjs[objnum] = pObj;
   m_LastObjNum = std::max(m_LastObjNum, objnum);
   return TRUE;
 }