Split off CPDF_Document into its own .cpp/.h files.

fpdfsdk/src/formfiller/FFL_CBA_Fontmap.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 "fpdfsdk/include/formfiller/FFL_CBA_Fontmap.h"
 
+#include "core/include/fpdfapi/cpdf_document.h"
 #include "core/include/fpdfapi/fpdf_page.h"
 #include "fpdfsdk/include/fsdk_baseannot.h"
 
 CBA_FontMap::CBA_FontMap(CPDFSDK_Annot* pAnnot,
                          IFX_SystemHandler* pSystemHandler)
     : CPWL_FontMap(pSystemHandler),
       m_pDocument(NULL),
       m_pAnnotDict(NULL),
       m_pDefaultFont(NULL),
       m_sAPType("N") {
@@ skipping 229 matching lines @@
 
   return pFontDict ? m_pDocument->LoadFont(pFontDict) : nullptr;
 }
 
 void CBA_FontMap::SetAPType(const CFX_ByteString& sAPType) {
   m_sAPType = sAPType;
 
   Reset();
   Initialize();
 }