Revert of Add FontCache API for retrieving prioritized fallback fonts

third_party/WebKit/Source/platform/fonts/FontCache.cpp

 /*
  * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 176 matching lines @@
 {
     bool checkingAlternateName = true;
     return getFontPlatformData(fontDescription, FontFaceCreationParams(adjustFamilyNameToAvoidUnsupportedFonts(family)), checkingAlternateName);
 }
 
 SimpleFontData* FontCache::getNonRetainedLastResortFallbackFont(const FontDescription& fontDescription)
 {
     return getLastResortFallbackFont(fontDescription, DoNotRetain).leakRef();
 }
 
-template <FontFallbackPriority fallbackPriority>
-const Vector<AtomicString>* FontCache::initAndGetFontListForFallbackPriority(const FontDescription& fontDescription)
-{
-    DEFINE_STATIC_LOCAL(Vector<AtomicString>, fontsList, ());
-    DEFINE_STATIC_LOCAL(bool, fontsListInitialized, (false));
-    if (fontsListInitialized)
-        return &fontsList;
-
-    for (auto fontCandidate :
-        platformFontListForFallbackPriority(fallbackPriority)) {
-        if (isPlatformFontAvailable(fontDescription, fontCandidate))
-            fontsList.append(fontCandidate);
-    }
-    fontsListInitialized = true;
-    return &fontsList;
-}
-
-const Vector<AtomicString>* FontCache::fontListForFallbackPriority(const FontDescription& fontDescription, FontFallbackPriority fallbackPriority)
-{
-    // Explicit template instantiations for valid values.
-    switch (fallbackPriority) {
-    case FontFallbackPriority::Symbols:
-        return initAndGetFontListForFallbackPriority<FontFallbackPriority::Symbols>(fontDescription);
-    case FontFallbackPriority::Math:
-        return initAndGetFontListForFallbackPriority<FontFallbackPriority::Math>(fontDescription);
-    case FontFallbackPriority::EmojiText:
-        return initAndGetFontListForFallbackPriority<FontFallbackPriority::EmojiText>(fontDescription);
-    case FontFallbackPriority::EmojiEmoji:
-        return initAndGetFontListForFallbackPriority<FontFallbackPriority::EmojiEmoji>(fontDescription);
-    default:
-        ASSERT_NOT_REACHED();
-        return nullptr;
-    }
-}
-
 void FontCache::releaseFontData(const SimpleFontData* fontData)
 {
     ASSERT(gFontDataCache);
 
     gFontDataCache->release(fontData);
 }
 
 static inline void purgePlatformFontDataCache()
 {
     if (!gFontPlatformDataCache)
@@ skipping 150 matching lines @@
         iter != gFallbackListShaperCache->end();
         ++iter) {
         shapeResultCacheSize += iter->value->byteSize();
     }
     dump->addScalar("size", "bytes", shapeResultCacheSize);
     memoryDump->addSuballocation(dump->guid(), String(WTF::Partitions::kAllocatedObjectPoolName));
 }
 
 
 } // namespace blink