blink: Cleanup class forward declarations

third_party/WebKit/Source/platform/graphics/FrameData.h

 /*
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2008-2009 Torch Mobile, Inc.
  *
  * 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.
@@ skipping 16 matching lines @@
 
 #ifndef FrameData_h
 #define FrameData_h
 
 #include "platform/graphics/ImageOrientation.h"
 #include "wtf/Allocator.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/RefPtr.h"
 #include "wtf/VectorTraits.h"
 
-class SkImage;
-
 namespace blink {
 
 struct FrameData {
   DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
   WTF_MAKE_NONCOPYABLE(FrameData);
 
  public:
   FrameData();
   ~FrameData();
 
@@ skipping 15 matching lines @@
 template <>
 struct VectorTraits<blink::FrameData>
     : public SimpleClassVectorTraits<blink::FrameData> {
   STATIC_ONLY(VectorTraits);
   static const bool canInitializeWithMemset =
       false;  // Not all FrameData members initialize to 0.
 };
 }
 
 #endif  // FrameData_h