Add onGetFamilyName to SkTypeface.

src/ports/SkFontMgr_fontconfig.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkDataTable.h"
 #include "SkFontDescriptor.h"
 #include "SkFontHost_FreeType_common.h"
@@ skipping 371 matching lines @@
 
 class SkTypeface_stream : public SkTypeface_FreeType {
 public:
     /** @param stream does not take ownership of the reference, does take ownership of the stream.*/
     SkTypeface_stream(SkTypeface::Style style, bool fixedWidth, int ttcIndex, SkStreamAsset* stream)
         : INHERITED(style, SkTypefaceCache::NewFontID(), fixedWidth)
         , fStream(SkRef(stream))
         , fIndex(ttcIndex)
     { };
 
+    virtual void onGetFamilyName(SkString* familyName) const SK_OVERRIDE {
+        familyName->reset();
+    }
+
     virtual void onGetFontDescriptor(SkFontDescriptor* desc, bool* serialize) const SK_OVERRIDE {
         desc->setStyle(this->style());
         *serialize = true;
     }
 
     virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE {
         *ttcIndex = fIndex;
         return fStream->duplicate();
     }
 
 private:
     SkAutoTUnref<SkStreamAsset> fStream;
     int fIndex;
 
     typedef SkTypeface_FreeType INHERITED;
 };
 
 class SkTypeface_fontconfig : public SkTypeface_FreeType {
 public:
     /** @param pattern takes ownership of the reference. */
     static SkTypeface_fontconfig* Create(FcPattern* pattern) {
         return SkNEW_ARGS(SkTypeface_fontconfig, (pattern));
     }
     mutable SkAutoFcPattern fPattern;
 
+    virtual void onGetFamilyName(SkString* familyName) const SK_OVERRIDE {
+        *familyName = get_string(fPattern, FC_FAMILY);
+    }
+
     virtual void onGetFontDescriptor(SkFontDescriptor* desc, bool* serialize) const SK_OVERRIDE {
         FCLocker lock;
         desc->setFamilyName(get_string(fPattern, FC_FAMILY));
         desc->setFontFileName(get_string(fPattern, FC_FILE));
         desc->setFullName(get_string(fPattern, FC_FULLNAME));
         desc->setPostscriptName(get_string(fPattern, FC_POSTSCRIPT_NAME));
         desc->setStyle(this->style());
         *serialize = false;
     }
 
@@ skipping 421 matching lines @@
             return typeface.detach();
         }
 
         return this->matchFamilyStyle(NULL, style);
     }
 };
 
 SkFontMgr* SkFontMgr::Factory() {
     return SkNEW(SkFontMgr_fontconfig);
 }