Clarify desired behavior of FontConfigTypeface::LegacyCreateTypeface.

src/ports/SkFontConfigTypeface.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkFontConfigInterface.h"
 #include "SkFontHost_FreeType_common.h"
 #include "SkStream.h"
@@ skipping 21 matching lines @@
     const SkFontConfigInterface::FontIdentity& getIdentity() const {
         return fIdentity;
     }
 
     SkStreamAsset* getLocalStream() const { return fLocalStream.get(); }
 
     bool isFamilyName(const char* name) const {
         return fFamilyName.equals(name);
     }
 
-    static SkTypeface* LegacyCreateTypeface(const SkTypeface* family,
-                                            const char familyName[],
-                                            SkTypeface::Style);
+    static SkTypeface* LegacyCreateTypeface(const char familyName[], SkTypeface::Style);
 
 protected:
     friend class SkFontHost;    // hack until we can make public versions
 
     FontConfigTypeface(const SkFontStyle& style,
                        const SkFontConfigInterface::FontIdentity& fi,
                        const SkString& familyName)
             : INHERITED(style, SkTypefaceCache::NewFontID(), false)
             , fIdentity(fi)
             , fFamilyName(familyName)
             , fLocalStream(NULL) {}
 
     FontConfigTypeface(const SkFontStyle& style, bool fixedWidth, SkStreamAsset* localStream)
             : INHERITED(style, SkTypefaceCache::NewFontID(), fixedWidth)
             , fLocalStream(localStream) {
         // we default to empty fFamilyName and fIdentity
     }
 
     void onGetFamilyName(SkString* familyName) const SK_OVERRIDE;
     void onGetFontDescriptor(SkFontDescriptor*, bool*) const SK_OVERRIDE;
     SkStreamAsset* onOpenStream(int* ttcIndex) const SK_OVERRIDE;
 
 private:
     typedef SkTypeface_FreeType INHERITED;
 };