Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/web/PageWidgetDelegate.h

 /*
  * Copyright (C) 2012 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 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef PageWidgetDelegate_h
 #define PageWidgetDelegate_h
 
 #include "public/platform/WebCanvas.h"
 #include "public/web/WebInputEvent.h"
 #include "public/web/WebWidget.h"
 #include "web/WebExport.h"
+#include "wtf/OwnPtr.h"
 
 namespace blink {
 
 class LocalFrame;
 class Page;
 class WebGestureEvent;
 class WebInputEvent;
 class WebKeyboardEvent;
 class WebMouseEvent;
 class WebMouseWheelEvent;
@@ skipping 32 matching lines @@
 
     // See FIXME in the function body about nullptr |root|.
     static WebInputEventResult handleInputEvent(PageWidgetEventHandler&, const WebInputEvent&, LocalFrame* root);
 
 private:
     PageWidgetDelegate() { }
 };
 
 } // namespace blink
 #endif