Cleanup: Remove unneeded scoped_ptr.h includes from webkit.

webkit/plugins/ppapi/ppb_video_decoder_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WEBKIT_PLUGINS_PPAPI_PPB_VIDEO_DECODER_IMPL_H_
 #define WEBKIT_PLUGINS_PPAPI_PPB_VIDEO_DECODER_IMPL_H_
 
-#include <vector>
-
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
-#include "base/memory/scoped_ptr.h"
+#include "base/memory/ref_counted.h"
 #include "ppapi/c/dev/pp_video_dev.h"
 #include "ppapi/c/dev/ppp_video_decoder_dev.h"
 #include "ppapi/c/pp_var.h"
 #include "ppapi/shared_impl/ppb_video_decoder_shared.h"
 #include "ppapi/shared_impl/resource.h"
 #include "ppapi/thunk/ppb_video_decoder_api.h"
 #include "webkit/plugins/ppapi/plugin_delegate.h"
 
 struct PP_PictureBuffer_Dev;
 struct PP_VideoBitstreamBuffer_Dev;
@@ skipping 53 matching lines @@
   // Reference to the plugin requesting this interface.
   const PPP_VideoDecoder_Dev* ppp_videodecoder_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_VideoDecoder_Impl);
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_PPB_VIDEO_DECODER_IMPL_H_