Fix promise resolution of FontFaceSet#load()

Source/core/css/FontFaceSet.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 50 matching lines @@
 class FontFaceSet FINAL : public RefCountedSupplement<Document, FontFaceSet>, public ActiveDOMObject, public EventTargetWithInlineData {
     REFCOUNTED_EVENT_TARGET(FontFaceSet);
 public:
     virtual ~FontFaceSet();
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(loading);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(loadingdone);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(loadingerror);
 
     bool check(const String& font, const String& text, ExceptionState&);
-    ScriptPromise load(const String& font, const String& text, ExceptionState&);
+    ScriptPromise load(const String& font, const String& text);
     ScriptPromise ready();
 
     void add(FontFace*, ExceptionState&);
     void clear();
     bool remove(FontFace*, ExceptionState&);
     void forEach(PassOwnPtr<FontFaceSetForEachCallback>, ScriptValue& thisArg) const;
     void forEach(PassOwnPtr<FontFaceSetForEachCallback>) const;
     bool has(FontFace*, ExceptionState&) const;
 
     unsigned long size() const;
@@ skipping 65 matching lines @@
     ListHashSet<RefPtr<FontFace> > m_nonCSSConnectedFaces;
 
     AsyncMethodRunner<FontFaceSet> m_asyncRunner;
 
     FontLoadHistogram m_histogram;
 };
 
 } // namespace WebCore
 
 #endif // FontFaceSet_h