Remove unnecessary include of wtf/CPU.h from a few files.

Source/web/WebImageDecoder.cpp

 /*
  * Copyright (C) 2010 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 16 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "WebImageDecoder.h"
 
 #include "core/platform/SharedBuffer.h"
 #include "core/platform/image-decoders/bmp/BMPImageDecoder.h"
 #include "core/platform/image-decoders/ico/ICOImageDecoder.h"
-#include "wtf/CPU.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "public/platform/WebData.h"
 #include "public/platform/WebImage.h"
 #include "public/platform/WebSize.h"
 
 using namespace WebCore;
 
 namespace WebKit {
@@ skipping 58 matching lines @@
 {
     ASSERT(m_private);
     ImageFrame* const frameBuffer = m_private->frameBufferAtIndex(index);
     if (!frameBuffer)
         return WebImage();
     RefPtr<NativeImageSkia> image = frameBuffer->asNewNativeImage();
     return WebImage(image->bitmap());
 }
 
 } // namespace WebKit