Split fpdfdoc/include/fpdf_doc.h into individual classes.

fpdfsdk/include/fsdk_define.h

 // 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
 
 #ifndef FPDFSDK_INCLUDE_FSDK_DEFINE_H_
 #define FPDFSDK_INCLUDE_FSDK_DEFINE_H_
 
 #include "core/fpdfapi/fpdf_parser/include/cpdf_parser.h"
-#include "core/fpdfdoc/include/fpdf_doc.h"
+#include "core/fxge/include/fx_dib.h"
 #include "public/fpdfview.h"
 
 #ifdef PDF_ENABLE_XFA
 #include "fpdfsdk/fpdfxfa/include/fpdfxfa_doc.h"
 #endif  // PDF_ENABLE_XFA
 
 #ifdef _WIN32
 #include <math.h>
 #include <tchar.h>
 #endif
 
 // Convert a #FX_ARGB to a #FX_COLORREF.
 #define FX_ARGBTOCOLORREF(argb)                                            \
   ((((uint32_t)argb & 0x00FF0000) >> 16) | ((uint32_t)argb & 0x0000FF00) | \
    (((uint32_t)argb & 0x000000FF) << 16))
 
 // Convert a #FX_COLORREF to a #FX_ARGB.
 #define FX_COLORREFTOARGB(rgb)                                   \
   ((uint32_t)0xFF000000 | (((uint32_t)rgb & 0x000000FF) << 16) | \
    ((uint32_t)rgb & 0x0000FF00) | (((uint32_t)rgb & 0x00FF0000) >> 16))
 
 typedef unsigned int FX_UINT;
+
+class CPDF_Annot;
+class CPDF_Page;
 class CPDF_PageRenderContext;
 class IFSDK_PAUSE_Adapter;
 
 class CPDF_CustomAccess final : public IFX_FileRead {
  public:
   explicit CPDF_CustomAccess(FPDF_FILEACCESS* pFileAccess);
   ~CPDF_CustomAccess() override {}
 
   // IFX_FileRead
   FX_FILESIZE GetSize() override;
@@ skipping 77 matching lines @@
                             int rotate,
                             int flags,
                             FX_BOOL bNeedToRestore,
                             IFSDK_PAUSE_Adapter* pause);
 
 void CheckUnSupportError(CPDF_Document* pDoc, uint32_t err_code);
 void CheckUnSupportAnnot(CPDF_Document* pDoc, const CPDF_Annot* pPDFAnnot);
 void ProcessParseError(CPDF_Parser::Error err);
 
 #endif  // FPDFSDK_INCLUDE_FSDK_DEFINE_H_