Adding WebFallbackFont and renaming SimpleFontFamily

Source/platform/fonts/android/FontCacheAndroid.cpp

 /*
  * Copyright (c) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 51 matching lines @@
         break;
     }
 
     SkString skiaFamilyName;
     if (!SkGetFallbackFamilyNameForChar(c, locale, &skiaFamilyName) || skiaFamilyName.isEmpty())
         return emptyAtom;
 
     return skiaFamilyName.c_str();
 }
 
-PassRefPtr<SimpleFontData> FontCache::platformFallbackForCharacter(const FontDescription& fontDescription, UChar32 c, const SimpleFontData*)
+PassRefPtr<SimpleFontData> FontCache::fallbackFontForCharacter(const FontDescription& fontDescription, UChar32 c, const SimpleFontData*)
 {
     AtomicString familyName = getFamilyNameForCharacter(c, fontDescription.script());
     if (familyName.isEmpty())
         return getLastResortFallbackFont(fontDescription, DoNotRetain);
     return fontDataFromFontPlatformData(getFontPlatformData(fontDescription, familyName), DoNotRetain);
 }
 
 // static
 AtomicString FontCache::getGenericFamilyNameForScript(const AtomicString& familyName, UScriptCode script)
 {
@@ skipping 11 matching lines @@
         break;
     default:
         // For other scripts, use the default generic family mapping logic.
         return familyName;
     }
 
     return getFamilyNameForCharacter(examplerChar, script);
 }
 
 } // namespace WebCore