Introduce typeface cache in blink::FontCache

third_party/WebKit/Source/core/fetch/FontResource.h

 /*
  * Copyright (C) 2007, 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 41 matching lines @@
     void setRevalidatingRequest(const ResourceRequest&) override;
 
     void allClientsAndObserversRemoved() override;
     void startLoadLimitTimersIfNeeded();
 
     void setCORSFailed() override { m_corsFailed = true; }
     bool isCORSFailed() const { return m_corsFailed; }
     String otsParsingMessage() const { return m_otsParsingMessage; }
 
     bool ensureCustomFontData();
-    FontPlatformData platformDataFromCustomData(float size, bool bold, bool italic, FontOrientation = FontOrientation::Horizontal);
+    FontPlatformData platformDataFromCustomData(bool bold, bool italic, FontOrientation = FontOrientation::Horizontal);
 
 protected:
     bool isSafeToUnlock() const override;
 
 private:
     class FontResourceFactory : public ResourceFactory {
     public:
         FontResourceFactory()
             : ResourceFactory(Resource::Font) { }
 
@@ skipping 27 matching lines @@
     ~FontResourceClient() override {}
     static bool isExpectedType(ResourceClient* client) { return client->getResourceClientType() == FontType; }
     ResourceClientType getResourceClientType() const final { return FontType; }
     virtual void fontLoadShortLimitExceeded(FontResource*) {}
     virtual void fontLoadLongLimitExceeded(FontResource*) {}
 };
 
 } // namespace blink
 
 #endif