Implement onMatchFamilyStyle for Mac.

src/ports/SkFontHost_mac.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkTypes.h"  // Keep this before any #ifdef ...
 #if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
@@ skipping 2321 matching lines @@
         }
         return CreateSet(this->stringAt(index));
     }
 
     SkFontStyleSet* onMatchFamily(const char familyName[]) const override {
         AutoCFRelease<CFStringRef> cfName(make_CFString(familyName));
         return CreateSet(cfName);
     }
 
     virtual SkTypeface* onMatchFamilyStyle(const char familyName[],
-                                           const SkFontStyle&) const override {
-        return nullptr;
+                                           const SkFontStyle& fontStyle) const override {
+        SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName));
+        return sset->matchStyle(fontStyle);
     }
 
     virtual SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], const SkFontStyle&,
                                                     const char* bcp47[], int bcp47Count,
                                                     SkUnichar character) const override {
         return nullptr;
     }
 
     virtual SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember,
                                          const SkFontStyle&) const override {
@@ skipping 133 matching lines @@
         }
         return face;
     }
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 SkFontMgr* SkFontMgr::Factory() { return new SkFontMgr_Mac; }
 
 #endif//defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)