move impl of AdvancedTypefaceMetrics into typeface (3)

src/ports/SkFontHost_FreeType.cpp

Index: src/ports/SkFontHost_FreeType.cpp
===================================================================
--- src/ports/SkFontHost_FreeType.cpp	(revision 8262)
+++ src/ports/SkFontHost_FreeType.cpp	(working copy)
@@ -447,12 +447,10 @@
     }
 }
 
-// static
-SkAdvancedTypefaceMetrics* SkFontHost::GetAdvancedTypefaceMetrics(
-        uint32_t fontID,
+SkAdvancedTypefaceMetrics* SkTypeface_FreeType::onGetAdvancedTypefaceMetrics(
         SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo,
         const uint32_t* glyphIDs,
-        uint32_t glyphIDsCount) {
+        uint32_t glyphIDsCount) const {
 #if defined(SK_BUILD_FOR_MAC)
     return NULL;
 #else
@@ -464,7 +462,7 @@
         libInit = gFTLibrary;
     }
     SkAutoTCallIProc<struct FT_LibraryRec_, FT_Done_FreeType> ftLib(libInit);
-    SkFaceRec* rec = ref_ft_face(fontID);
+    SkFaceRec* rec = ref_ft_face(this->uniqueID());
     if (NULL == rec)
         return NULL;
     FT_Face face = rec->fFace;