Cleanup CustomFontData after SVG Fonts removal

Source/platform/fonts/CustomFontData.h

Index: Source/platform/fonts/CustomFontData.h
diff --git a/Source/platform/fonts/CustomFontData.h b/Source/platform/fonts/CustomFontData.h
index 616179b691b2c873b5f89f321248b5ba76fbf308..1ac90e670d9709984e07f7b1b44e1dc08dcf1518 100644
--- a/Source/platform/fonts/CustomFontData.h
+++ b/Source/platform/fonts/CustomFontData.h
@@ -22,17 +22,12 @@
 #define CustomFontData_h
 
 #include "platform/PlatformExport.h"
-#include "platform/fonts/Glyph.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
-#include <unicode/uchar.h>
 
 namespace blink {
 
-struct GlyphData;
-class GlyphPage;
 class SimpleFontData;
-struct SimpleShaper;
 
 class PLATFORM_EXPORT CustomFontData : public RefCounted<CustomFontData> {
 public:
@@ -47,18 +42,11 @@ public:
     virtual void clearFontFaceSource() { }
 
     virtual void initializeFontData(SimpleFontData*, float) { }
-    virtual float widthForSVGGlyph(Glyph, float) const { return 0.0f; }
-    virtual bool fillSVGGlyphPage(GlyphPage*, unsigned, unsigned, UChar*, unsigned, const SimpleFontData*) const { return false; }
-    virtual bool applySVGGlyphSelection(SimpleShaper&, GlyphData&, bool, int, unsigned&) const { return false; }
 
 protected:
     CustomFontData() { }
 };
 
-#define DEFINE_CUSTOM_FONT_DATA_TYPE_CASTS(thisType, predicate) \
-    template<typename T> inline thisType* to##thisType(const RefPtr<T>& customFontData) { return to##thisType(customFontData.get()); } \
-    DEFINE_TYPE_CASTS(thisType, CustomFontData, customFontData, customFontData->predicate, customFontData.predicate)
-
 } // namespace blink
 
 #endif // CustomFontData_h