Cleanup: Remove unneeded scoped_ptr.h includes from webkit.

webkit/plugins/npapi/plugin_instance.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
 // TODO: Need to deal with NPAPI's NPSavedData.
 //       I haven't seen plugins use it yet.
 
 #ifndef WEBKIT_PLUGINS_NPAPI_PLUGIN_INSTANCE_H_
 #define WEBKIT_PLUGINS_NPAPI_PLUGIN_INSTANCE_H_
 
 #include <map>
 #include <stack>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "googleurl/src/gurl.h"
 #include "third_party/npapi/bindings/npapi.h"
 #include "third_party/npapi/bindings/nphostapi.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/point.h"
 #include "ui/gfx/rect.h"
 
 class MessageLoop;
 
 namespace webkit {
@@ skipping 333 matching lines @@
  private:
   scoped_refptr<PluginInstance> instance_;
   DISALLOW_COPY_AND_ASSIGN(ScopedCurrentPluginEvent);
 };
 #endif
 
 }  // namespace npapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_NPAPI_PLUGIN_INSTANCE_H_