Continue splitting pageint.h into per-class files

core/fpdfapi/page/cpdf_pageobjectholder.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_pageobjectholder.h"
 
 #include <algorithm>
 
+#include "core/fpdfapi/page/cpdf_contentparser.h"
 #include "core/fpdfapi/page/cpdf_pageobject.h"
 #include "core/fpdfapi/page/pageint.h"
 #include "core/fpdfapi/parser/cpdf_dictionary.h"
 
 CPDF_PageObjectHolder::CPDF_PageObjectHolder()
     : m_pFormDict(nullptr),
       m_pFormStream(nullptr),
       m_pDocument(nullptr),
       m_pPageResources(nullptr),
       m_pResources(nullptr),
@@ skipping 49 matching lines @@
     return;
   }
   m_Transparency |= PDFTRANS_GROUP;
   if (pGroup->GetIntegerFor("I")) {
     m_Transparency |= PDFTRANS_ISOLATED;
   }
   if (pGroup->GetIntegerFor("K")) {
     m_Transparency |= PDFTRANS_KNOCKOUT;
   }
 }