Fix virtual/override/final usage in Source/platform/.

Source/platform/fonts/SimpleFontData.h

 /*
  * This file is part of the internal font implementation.
  *
  * Copyright (C) 2006, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2007-2008 Torch Mobile, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 39 matching lines @@
 enum FontDataVariant { AutoVariant, NormalVariant, SmallCapsVariant, EmphasisMarkVariant };
 
 class PLATFORM_EXPORT SimpleFontData : public FontData {
 public:
     // Used to create platform fonts.
     static PassRefPtr<SimpleFontData> create(const FontPlatformData& platformData, PassRefPtr<CustomFontData> customData = nullptr, bool isTextOrientationFallback = false)
     {
         return adoptRef(new SimpleFontData(platformData, customData, isTextOrientationFallback));
     }
 
-    virtual ~SimpleFontData();
+    ~SimpleFontData() override;
 
     const FontPlatformData& platformData() const { return m_platformData; }
     const OpenTypeVerticalData* verticalData() const { return m_verticalData.get(); }
 
     PassRefPtr<SimpleFontData> smallCapsFontData(const FontDescription&) const;
     PassRefPtr<SimpleFontData> emphasisMarkFontData(const FontDescription&) const;
 
     PassRefPtr<SimpleFontData> variantFontData(const FontDescription& description, FontDataVariant variant) const
     {
         switch (variant) {
@@ skipping 34 matching lines @@
     void setSpaceWidth(float spaceWidth) { m_spaceWidth = spaceWidth; }
 
     Glyph spaceGlyph() const { return m_spaceGlyph; }
     void setSpaceGlyph(Glyph spaceGlyph) { m_spaceGlyph = spaceGlyph; }
     Glyph zeroWidthSpaceGlyph() const { return m_zeroWidthSpaceGlyph; }
     void setZeroWidthSpaceGlyph(Glyph spaceGlyph) { m_zeroWidthSpaceGlyph = spaceGlyph; }
     bool isZeroWidthSpaceGlyph(Glyph glyph) const { return glyph == m_zeroWidthSpaceGlyph && glyph; }
     Glyph zeroGlyph() const { return m_zeroGlyph; }
     void setZeroGlyph(Glyph zeroGlyph) { m_zeroGlyph = zeroGlyph; }
 
-    virtual const SimpleFontData* fontDataForCharacter(UChar32) const override;
+    const SimpleFontData* fontDataForCharacter(UChar32) const override;
 
     Glyph glyphForCharacter(UChar32) const;
 
-    virtual bool isCustomFont() const override { return m_customFontData; }
-    virtual bool isLoading() const override { return m_customFontData ? m_customFontData->isLoading() : false; }
-    virtual bool isLoadingFallback() const override { return m_customFontData ? m_customFontData->isLoadingFallback() : false; }
-    virtual bool isSegmented() const override;
-    virtual bool shouldSkipDrawing() const override { return m_customFontData && m_customFontData->shouldSkipDrawing(); }
+    bool isCustomFont() const override { return m_customFontData; }
+    bool isLoading() const override { return m_customFontData ? m_customFontData->isLoading() : false; }
+    bool isLoadingFallback() const override { return m_customFontData ? m_customFontData->isLoadingFallback() : false; }
+    bool isSegmented() const override;
+    bool shouldSkipDrawing() const override { return m_customFontData && m_customFontData->shouldSkipDrawing(); }
 
     const GlyphData& missingGlyphData() const { return m_missingGlyphData; }
     void setMissingGlyphData(const GlyphData& glyphData) { m_missingGlyphData = glyphData; }
 
     bool canRenderCombiningCharacterSequence(const UChar*, size_t) const;
 
     PassRefPtr<CustomFontData> customFontData() const { return m_customFontData; }
 
     // Implemented by the platform.
     virtual bool fillGlyphPage(GlyphPage* pageToFill, unsigned offset, unsigned length, UChar* buffer, unsigned bufferLength) const;
@@ skipping 85 matching lines @@
     width = platformWidthForGlyph(glyph);
 
     m_glyphToWidthMap.setMetricsForGlyph(glyph, width);
     return width;
 }
 
 DEFINE_FONT_DATA_TYPE_CASTS(SimpleFontData, false);
 
 } // namespace blink
 #endif // SimpleFontData_h