Add onGetFamilyName to SkTypeface.

src/ports/SkFontHost_mac.cpp

Index: src/ports/SkFontHost_mac.cpp
diff --git a/src/ports/SkFontHost_mac.cpp b/src/ports/SkFontHost_mac.cpp
index 3c73493b41479745c2bb4ede10b8bb9e39be9300..5386ac3f3e1dfcb3f17171b624f86915c42a3ea8 100755
--- a/src/ports/SkFontHost_mac.cpp
+++ b/src/ports/SkFontHost_mac.cpp
@@ -452,6 +452,7 @@ protected:
 
     virtual int onGetUPEM() const SK_OVERRIDE;
     virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE;
+    virtual void onGetFamilyName(SkString* familyName) const SK_OVERRIDE;
     virtual SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const SK_OVERRIDE;
     virtual int onGetTableTags(SkFontTableTag tags[]) const SK_OVERRIDE;
     virtual size_t onGetTableData(SkFontTableTag, size_t offset,
@@ -1900,6 +1901,10 @@ static const char* get_str(CFStringRef ref, SkString* str) {
     return str->c_str();
 }
 
+void SkTypeface_Mac::onGetFamilyName(SkString* familyName) const {
+    get_str(CTFontCopyFamilyName(fFontRef), familyName);
+}
+
 void SkTypeface_Mac::onGetFontDescriptor(SkFontDescriptor* desc,
                                          bool* isLocalStream) const {
     SkString tmpStr;