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

core/fpdfdoc/include/cpdf_annot.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_FPDFDOC_CPDF_ANNOT_H_
-#define CORE_FPDFDOC_CPDF_ANNOT_H_
+#ifndef CORE_FPDFDOC_INCLUDE_CPDF_ANNOT_H_
+#define CORE_FPDFDOC_INCLUDE_CPDF_ANNOT_H_
 
 #include <map>
 #include <memory>
 
 #include "core/fxcrt/include/fx_coordinates.h"
 #include "core/fxcrt/include/fx_string.h"
 #include "core/fxcrt/include/fx_system.h"
 
 class CFX_RenderDevice;
 class CPDF_Dictionary;
@@ skipping 41 matching lines @@
                   const CPDF_RenderOptions* pOptions);
   CPDF_Form* GetAPForm(const CPDF_Page* pPage, AppearanceMode mode);
 
  private:
   CPDF_Dictionary* const m_pAnnotDict;
   CPDF_Document* const m_pDocument;
   const CFX_ByteString m_sSubtype;
   std::map<CPDF_Stream*, std::unique_ptr<CPDF_Form>> m_APMap;
 };
 
-#endif  // CORE_FPDFDOC_CPDF_ANNOT_H_
+CPDF_Stream* FPDFDOC_GetAnnotAP(CPDF_Dictionary* pAnnotDict,
+                                CPDF_Annot::AppearanceMode mode);
+
+#endif  // CORE_FPDFDOC_INCLUDE_CPDF_ANNOT_H_