Cleanup forward declarations.

fpdfsdk/include/fsdk_baseform.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_BASEFORM_H_
 #define FPDFSDK_INCLUDE_FSDK_BASEFORM_H_
 
 #if _FX_OS_ == _FX_ANDROID_
 #include "time.h"
 #else
 #include <ctime>
 #endif
 
 #include <map>
 #include <vector>
 
 #include "core/include/fpdfapi/fpdf_parser.h"
 #include "core/include/fpdfdoc/fpdf_doc.h"
 #include "core/include/fxcrt/fx_basic.h"
 #include "core/include/fxge/fx_dib.h"
 #include "fpdfsdk/include/fsdk_baseannot.h"
 
-class CFFL_FormFiller;
 class CPDFSDK_Annot;
-class CPDFSDK_DateTime;
 class CPDFSDK_Document;
 class CPDFSDK_InterForm;
 class CPDFSDK_PageView;
 class CPDF_Action;
 class CPDF_FormField;
 struct CPWL_Color;
 
 #ifdef PDF_ENABLE_XFA
 typedef enum _PDFSDK_XFAAActionType {
   PDFSDK_XFA_Click = 0,
@@ skipping 355 matching lines @@
                                      const CPDFSDK_Annot* p2);
 
   TabOrder m_eTabOrder;
   CPDFSDK_PageView* m_pPageView;
   CFX_ByteString m_sType;
   CFX_ByteString m_sSubType;
   std::vector<CPDFSDK_Annot*> m_Annots;
 };
 
 #endif  // FPDFSDK_INCLUDE_FSDK_BASEFORM_H_