Cleanup forward declarations.

xfa/include/fxjse/fxjse.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 XFA_INCLUDE_FXJSE_FXJSE_H_
 #define XFA_INCLUDE_FXJSE_FXJSE_H_
 
 #include "core/include/fpdfapi/fpdf_parser.h"
 #include "core/include/fxcrt/fx_string.h"
 #include "core/include/fxcrt/fx_system.h"
 
-class CPDFDoc_Environment;
-class CPDF_Page;
 struct FXJSE_CLASS;
 
 typedef struct FXJSE_HRUNTIME_ { void* pData; } * FXJSE_HRUNTIME;
 typedef struct FXJSE_HCONTEXT_ { void* pData; } * FXJSE_HCONTEXT;
 typedef struct FXJSE_HCLASS_ { void* pData; } * FXJSE_HCLASS;
 typedef struct FXJSE_HVALUE_ { void* pData; } * FXJSE_HVALUE;
 // NOLINTNEXTLINE
 typedef struct FXJSE_HOBJECT_ : public FXJSE_HVALUE_{} * FXJSE_HOBJECT;
 typedef double FXJSE_DOUBLE;
 
@@ skipping 143 matching lines @@
 void FXJSE_ThrowMessage(const CFX_ByteStringC& utf8Name,
                         const CFX_ByteStringC& utf8Message);
 FX_BOOL FXJSE_ReturnValue_GetMessage(FXJSE_HVALUE hRetValue,
                                      CFX_ByteString& utf8Name,
                                      CFX_ByteString& utf8Message);
 FX_BOOL FXJSE_ReturnValue_GetLineInfo(FXJSE_HVALUE hRetValue,
                                       int32_t& nLine,
                                       int32_t& nCol);
 
 #endif  // XFA_INCLUDE_FXJSE_FXJSE_H_