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

fpdfsdk/src/fpdf_sysfontinfo.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 "../include/fsdk_define.h"
 #include "../include/fpdf_sysfontinfo.h"
 
 class CSysFontInfo_Ext FX_FINAL : public IFX_SystemFontInfo
 {
 public:
         FPDF_SYSFONTINFO*       m_pInfo;
 
-        virtual void            Release()
+        virtual void            Release() FX_OVERRIDE
         {
                 if (m_pInfo->Release)
                         m_pInfo->Release(m_pInfo);
                 delete this;
         }
 
-        virtual FX_BOOL         EnumFontList(CFX_FontMapper* pMapper)
+        virtual FX_BOOL         EnumFontList(CFX_FontMapper* pMapper) FX_OVERRIDE
         {
                 if (m_pInfo->EnumFonts) {
                         m_pInfo->EnumFonts(m_pInfo, pMapper);
                         return TRUE;
                 }
                 return FALSE;
         }
 
-        virtual void*           MapFont(int weight, FX_BOOL bItalic, int charset, int pitch_family, FX_LPCSTR family, FX_BOOL& bExact)
+        virtual void*           MapFont(int weight, FX_BOOL bItalic, int charset, int pitch_family, FX_LPCSTR family, FX_BOOL& bExact)  FX_OVERRIDE
         {
                 if (m_pInfo->MapFont)
                         return m_pInfo->MapFont(m_pInfo, weight, bItalic, charset, pitch_family, family, &bExact);
                 return NULL;
         }
 
-        virtual void*           GetFont(FX_LPCSTR family)
+        virtual void*           GetFont(FX_LPCSTR family)  FX_OVERRIDE
         {
                 if (m_pInfo->GetFont)
                         return m_pInfo->GetFont(m_pInfo, family);
                 return NULL;
         }
 
-        virtual FX_DWORD        GetFontData(void* hFont, FX_DWORD table, FX_LPBYTE buffer, FX_DWORD size)
+        virtual FX_DWORD        GetFontData(void* hFont, FX_DWORD table, FX_LPBYTE buffer, FX_DWORD size)  FX_OVERRIDE
         {
                 if (m_pInfo->GetFontData)
                         return m_pInfo->GetFontData(m_pInfo, hFont, table, buffer, size);
                 return 0;
         }
 
-        virtual FX_BOOL         GetFaceName(void* hFont, CFX_ByteString& name)
+        virtual FX_BOOL         GetFaceName(void* hFont, CFX_ByteString& name)  FX_OVERRIDE
         {
                 if (m_pInfo->GetFaceName == NULL) return FALSE;
                 FX_DWORD size = m_pInfo->GetFaceName(m_pInfo, hFont, NULL, 0);
                 if (size == 0) return FALSE;
                 char* buffer = FX_Alloc(char, size);
                 size = m_pInfo->GetFaceName(m_pInfo, hFont, buffer, size);
                 name = CFX_ByteString(buffer, size);
                 FX_Free(buffer);
                 return TRUE;
         }
 
-        virtual FX_BOOL         GetFontCharset(void* hFont, int& charset)
+        virtual FX_BOOL         GetFontCharset(void* hFont, int& charset)  FX_OVERRIDE
         {
                 if (m_pInfo->GetFontCharset) {
                         charset = m_pInfo->GetFontCharset(m_pInfo, hFont);
                         return TRUE;
                 }
                 return FALSE;
         }
 
-        virtual void            DeleteFont(void* hFont)
+        virtual void            DeleteFont(void* hFont)  FX_OVERRIDE
         {
                 if (m_pInfo->DeleteFont)
                         m_pInfo->DeleteFont(m_pInfo, hFont);
         }
 };
 
 DLLEXPORT void STDCALL FPDF_AddInstalledFont(void* mapper, const char* name, int charset)
 {
         ((CFX_FontMapper*)mapper)->AddInstalledFont(name, charset);
 }
@@ skipping 70 matching lines @@
         pFontInfoExt->GetFaceName = DefaultGetFaceName;
         pFontInfoExt->GetFont = DefaultGetFont;
         pFontInfoExt->GetFontCharset = DefaultGetFontCharset;
         pFontInfoExt->GetFontData = DefaultGetFontData;
         pFontInfoExt->MapFont = DefaultMapFont;
         pFontInfoExt->Release = DefaultRelease;
         pFontInfoExt->version = 1;
         pFontInfoExt->m_pFontInfo = pFontInfo;
         return pFontInfoExt;
 }