Split apart the remainder of fpdf_render_render.cpp into per-class files.

core/include/fpdfapi/cfdf_document.h

+// 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
+
+#ifndef CORE_INCLUDE_FPDFAPI_CFDF_DOCUMENT_H_
+#define CORE_INCLUDE_FPDFAPI_CFDF_DOCUMENT_H_
+
+#include "core/include/fpdfapi/fpdf_objects.h"
+#include "core/include/fxcrt/fx_stream.h"
+#include "core/include/fxcrt/fx_system.h"
+
+class CPDF_Dictionary;
+
+class CFDF_Document : public CPDF_IndirectObjectHolder {
+ public:
+  static CFDF_Document* CreateNewDoc();
+  static CFDF_Document* ParseFile(IFX_FileRead* pFile,
+                                  FX_BOOL bOwnFile = FALSE);
+  static CFDF_Document* ParseMemory(const uint8_t* pData, FX_DWORD size);
+  ~CFDF_Document();
+
+  FX_BOOL WriteBuf(CFX_ByteTextBuf& buf) const;
+  CPDF_Dictionary* GetRoot() const { return m_pRootDict; }
+
+ protected:
+  CFDF_Document();
+  void ParseStream(IFX_FileRead* pFile, FX_BOOL bOwnFile);
+
+  CPDF_Dictionary* m_pRootDict;
+  IFX_FileRead* m_pFile;
+  FX_BOOL m_bOwnFile;
+};
+
+#endif  // CORE_INCLUDE_FPDFAPI_CFDF_DOCUMENT_H_