Add FX_OVERRIDE and use it for virtual functions of FX_FINAL classes.

core/include/fpdfapi/fpdf_parser.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 _FPDF_PARSER_
 #define _FPDF_PARSER_
 #ifndef _FX_BASIC_H_
 #include "../fxcrt/fx_ext.h"
@@ skipping 395 matching lines @@
     ~CPDF_Parser();
 
     FX_DWORD                    StartParse(FX_LPCSTR filename, FX_BOOL bReParse = FALSE);
 
     FX_DWORD                    StartParse(FX_LPCWSTR filename, FX_BOOL bReParse = FALSE);
 
     FX_DWORD                    StartParse(IFX_FileRead* pFile, FX_BOOL bReParse = FALSE, FX_BOOL bOwnFileRead = TRUE);
 
     void                                CloseParser(FX_BOOL bReParse = FALSE);
 
-    virtual FX_DWORD    GetPermissions(FX_BOOL bCheckRevision = FALSE);
+    virtual FX_DWORD    GetPermissions(FX_BOOL bCheckRevision = FALSE) FX_OVERRIDE;
 
-    virtual FX_BOOL             IsOwner();
+    virtual FX_BOOL             IsOwner() FX_OVERRIDE;
 
     void                                SetPassword(const FX_CHAR* password)
     {
         m_Password = password;
     }
 
     CFX_ByteString              GetPassword()
     {
         return m_Password;
     }
@@ skipping 27 matching lines @@
 
     CPDF_Document*              GetDocument()
     {
         return m_pDocument;
     }
     CFX_ArrayTemplate<CPDF_Dictionary *> * GetOtherTrailers()
     {
         return &m_Trailers;
     }
 
-    virtual FX_DWORD    GetRootObjNum();
-    virtual FX_DWORD    GetInfoObjNum();
-    virtual CPDF_Array* GetIDArray();
-    virtual CPDF_Dictionary*    GetEncryptDict()
+    virtual FX_DWORD    GetRootObjNum() FX_OVERRIDE;
+    virtual FX_DWORD    GetInfoObjNum()  FX_OVERRIDE;
+    virtual CPDF_Array* GetIDArray()  FX_OVERRIDE;
+    virtual CPDF_Dictionary*    GetEncryptDict()  FX_OVERRIDE
     {
         return m_pEncryptDict;
     }
-    virtual CPDF_Object*                ParseIndirectObject(CPDF_IndirectObjects* pObjList, FX_DWORD objnum, PARSE_CONTEXT* pContext = NULL);
-    virtual FX_DWORD    GetLastObjNum();
-    virtual FX_BOOL             IsFormStream(FX_DWORD objnum, FX_BOOL& bForm);
+    virtual CPDF_Object*                ParseIndirectObject(CPDF_IndirectObjects* pObjList, FX_DWORD objnum, PARSE_CONTEXT* pContext = NULL)  FX_OVERRIDE;
+    virtual FX_DWORD    GetLastObjNum() FX_OVERRIDE;
+    virtual FX_BOOL             IsFormStream(FX_DWORD objnum, FX_BOOL& bForm)  FX_OVERRIDE;
 
     FX_FILESIZE                 GetObjectOffset(FX_DWORD objnum);
 
     FX_FILESIZE                 GetObjectSize(FX_DWORD objnum);
 
     int                                 GetObjectVersion(FX_DWORD objnum)
     {
         return m_ObjVersion[objnum];
     }
 
@@ skipping 459 matching lines @@
     PDF_DATAAVAIL_LOADALLFILE,
     PDF_DATAAVAIL_TRAILER_APPEND
 };
 class CPDF_DataAvail FX_FINAL : public CFX_Object, public IPDF_DataAvail
 {
 public:
 
     CPDF_DataAvail(IFX_FileAvail* pFileAvail, IFX_FileRead* pFileRead);
     ~CPDF_DataAvail();
 
-    virtual FX_BOOL                             IsDocAvail(IFX_DownloadHints* pHints);
+    virtual FX_BOOL                             IsDocAvail(IFX_DownloadHints* pHints)  FX_OVERRIDE;
 
 
-    virtual void                                SetDocument(CPDF_Document* pDoc);
+    virtual void                                SetDocument(CPDF_Document* pDoc)  FX_OVERRIDE;
 
 
-    virtual FX_BOOL                             IsPageAvail(int iPage, IFX_DownloadHints* pHints);
+    virtual FX_BOOL                             IsPageAvail(int iPage, IFX_DownloadHints* pHints)  FX_OVERRIDE;
 
-    virtual FX_INT32                    IsFormAvail(IFX_DownloadHints *pHints);
+    virtual FX_INT32                    IsFormAvail(IFX_DownloadHints *pHints)  FX_OVERRIDE;
 
-    virtual FX_INT32                    IsLinearizedPDF();
+    virtual FX_INT32                    IsLinearizedPDF()  FX_OVERRIDE;
 
-    virtual FX_BOOL                             IsLinearized()
+    virtual FX_BOOL                             IsLinearized()  FX_OVERRIDE
     {
         return m_bLinearized;
     }
 
-    virtual void                                GetLinearizedMainXRefInfo(FX_FILESIZE *pPos, FX_DWORD *pSize);
+    virtual void                                GetLinearizedMainXRefInfo(FX_FILESIZE *pPos, FX_DWORD *pSize)  FX_OVERRIDE;
     IFX_FileRead*                               GetFileRead() const
     {
         return m_pFileRead;
     }
     IFX_FileAvail*                              GetFileAvail() const
     {
         return m_pFileAvail;
     }
 protected:
     FX_DWORD                                    GetObjectSize(FX_DWORD objnum, FX_FILESIZE& offset);
@@ skipping 157 matching lines @@
 
     FX_BOOL                                     m_bCurPageDictLoadOK;
 
     CPDF_PageNode                       m_pageNodes;
 
     CFX_CMapDWordToDWord *      m_pageMapCheckState;
 
     CFX_CMapDWordToDWord *      m_pagesLoadState;
 };
 #endif