Introduce typeface cache in blink::FontCache

third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzFace.h

Index: third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzFace.h
diff --git a/third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzFace.h b/third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzFace.h
index 9f7c15a140927f7ae5b8e064eab60929d47d32b4..23f572c0bdc4ce4b82dd2e948665adf05ea0734a 100644
--- a/third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzFace.h
+++ b/third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzFace.h
@@ -45,6 +45,7 @@
 namespace blink {
 
 class FontPlatformData;
+struct FontRenderStyle;
 
 class HarfBuzzFace : public RefCounted<HarfBuzzFace> {
     WTF_MAKE_NONCOPYABLE(HarfBuzzFace);
@@ -61,7 +62,7 @@ public:
     // In order to support the restricting effect of unicode-range optionally a
     // range restriction can be passed in, which will restrict which glyphs we
     // return in the harfBuzzGetGlyph function.
-    hb_font_t* createFont(PassRefPtr<UnicodeRangeSet> = nullptr) const;
+    hb_font_t* createFont(float size, const FontRenderStyle&, PassRefPtr<UnicodeRangeSet> = nullptr) const;
     hb_face_t* face() const { return m_face; }
 
 private: