Use override in more classes in core/

core/include/fxge/fx_font.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 CORE_INCLUDE_FXGE_FX_FONT_H_
 #define CORE_INCLUDE_FXGE_FX_FONT_H_
 
 #include <map>
@@ skipping 226 matching lines @@
   virtual void Finish() = 0;
 };
 class IFX_AdditionalFontEnum {
  public:
   virtual ~IFX_AdditionalFontEnum() {}
   virtual int CountFiles() = 0;
   virtual IFX_FileStream* GetFontFile(int index) = 0;
 };
 class CFX_FontMapper {
  public:
-  CFX_FontMapper(CFX_FontMgr* mgr);
+  explicit CFX_FontMapper(CFX_FontMgr* mgr);
   ~CFX_FontMapper();
 
   void SetSystemFontInfo(IFX_SystemFontInfo* pFontInfo);
   IFX_SystemFontInfo* GetSystemFontInfo() { return m_pFontInfo; }
   void AddInstalledFont(const CFX_ByteString& name, int charset);
   void LoadInstalledFonts();
   CFX_ByteStringArray m_InstalledTTFonts;
   void SetFontEnumerator(IFX_FontEnumerator* pFontEnumerator) {
     m_pFontEnumerator = pFontEnumerator;
   }
@@ skipping 18 matching lines @@
   FX_BOOL m_bListLoaded;
   FXFT_Face m_MMFaces[2];
   CFX_ByteString m_LastFamily;
   CFX_DWordArray m_CharsetArray;
   CFX_ByteStringArray m_FaceArray;
   IFX_SystemFontInfo* m_pFontInfo;
   FXFT_Face m_FoxitFaces[14];
   IFX_FontEnumerator* m_pFontEnumerator;
   CFX_FontMgr* const m_pFontMgr;
 };
+
 class IFX_SystemFontInfo {
  public:
   static IFX_SystemFontInfo* CreateDefault(const char** pUserPaths);
   virtual void Release() = 0;
 
   virtual FX_BOOL EnumFontList(CFX_FontMapper* pMapper) = 0;
   virtual void* MapFont(int weight,
                         FX_BOOL bItalic,
                         int charset,
                         int pitch_family,
                         const FX_CHAR* face,
                         int& iExact) = 0;
   virtual void* GetFont(const FX_CHAR* face) = 0;
   virtual FX_DWORD GetFontData(void* hFont,
                                FX_DWORD table,
                                uint8_t* buffer,
                                FX_DWORD size) = 0;
   virtual FX_BOOL GetFaceName(void* hFont, CFX_ByteString& name) = 0;
   virtual FX_BOOL GetFontCharset(void* hFont, int& charset) = 0;
   virtual int GetFaceIndex(void* hFont) { return 0; }
   virtual void DeleteFont(void* hFont) = 0;
   virtual void* RetainFont(void* hFont) { return NULL; }
 
  protected:
-  ~IFX_SystemFontInfo() {}
+  virtual ~IFX_SystemFontInfo() {}
 };
+
 class CFX_FolderFontInfo : public IFX_SystemFontInfo {
  public:
   CFX_FolderFontInfo();
-  virtual ~CFX_FolderFontInfo();
+  ~CFX_FolderFontInfo() override;
   void AddPath(const CFX_ByteStringC& path);
 
   // IFX_SytemFontInfo:
   void Release() override;
   FX_BOOL EnumFontList(CFX_FontMapper* pMapper) override;
   void* MapFont(int weight,
                 FX_BOOL bItalic,
                 int charset,
                 int pitch_family,
                 const FX_CHAR* face,
@@ skipping 106 matching lines @@
                            FX_FLOAT retinaScaleX = 1.0f,
                            FX_FLOAT retinaScaleY = 1.0f);
 class IFX_GSUBTable {
  public:
   static IFX_GSUBTable* Create(CFX_Font* pFont);
   virtual ~IFX_GSUBTable() {}
   virtual FX_BOOL GetVerticalGlyph(FX_DWORD glyphnum, FX_DWORD* vglyphnum) = 0;
 };
 
 #endif  // CORE_INCLUDE_FXGE_FX_FONT_H_