Clean up forward declarations in Source/core/css

Source/core/css/FontFace.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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 31 matching lines @@
 #include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class CSSFontFace;
 class CSSValueList;
 class Dictionary;
 class Document;
 class ExceptionState;
-class FontFaceReadyPromiseResolver;
 class StylePropertySet;
 class StyleRuleFontFace;
 
 class FontFace : public RefCountedWillBeGarbageCollectedFinalized<FontFace>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
     enum LoadStatus { Unloaded, Loading, Loaded, Error };
 
     static PassRefPtrWillBeRawPtr<FontFace> create(ExecutionContext*, const AtomicString& family, PassRefPtr<ArrayBuffer> source, const Dictionary&);
     static PassRefPtrWillBeRawPtr<FontFace> create(ExecutionContext*, const AtomicString& family, PassRefPtr<ArrayBufferView>, const Dictionary&);
@@ skipping 73 matching lines @@
     PersistentWillBeMember<LoadedProperty> m_loadedProperty;
     OwnPtrWillBeMember<CSSFontFace> m_cssFontFace;
     WillBeHeapVector<RefPtrWillBeMember<LoadFontCallback> > m_callbacks;
 };
 
 typedef WillBeHeapVector<RefPtrWillBeMember<FontFace> > FontFaceArray;
 
 } // namespace blink
 
 #endif // FontFace_h