Fix missing include file in webframeloaderclient_impl.h to make it self-contained.

webkit/glue/webframeloaderclient_impl.h

 // Copyright (c) 2006-2008 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_GLUE_WEBFRAMELOADERCLIENT_IMPL_H__
 #define WEBKIT_GLUE_WEBFRAMELOADERCLIENT_IMPL_H__
 
 #include <set>
 
 #include "base/compiler_specific.h"
 
 MSVC_PUSH_WARNING_LEVEL(0);
 #include "FrameLoaderClient.h"
 MSVC_POP_WARNING();
 
 #include "build/build_config.h"
+#include "base/scoped_ptr.h"
 #include "googleurl/src/gurl.h"
 #include "webkit/glue/webview_delegate.h"
 #include "webkit/glue/window_open_disposition.h"
 
 namespace WebCore {
 class Frame;
 class HTMLFormElement;
 class Widget;
 }
 
@@ skipping 221 matching lines @@
   WebPluginContainer* plugin_widget_;
   // Indicates if we need to send over the initial notification to the plugin
   // which specifies that the plugin should be ready to accept data.
   bool sent_initial_response_to_plugin_;
 
   // The disposition to use for the next call to dispatchCreatePage.
   WindowOpenDisposition next_window_open_disposition_;
 };
 
 #endif  // #ifndef WEBKIT_GLUE_WEBFRAMELOADERCLIENT_IMPL_H__