Remove linked_ptr usage in //base.

components/guest_view/browser/guest_view_event.h

 // Copyright 2015 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 COMPONENTS_GUEST_VIEW_BROWSER_GUEST_VIEW_EVENT_H_
 #define COMPONENTS_GUEST_VIEW_BROWSER_GUEST_VIEW_EVENT_H_
 
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 
 namespace guest_view {
 
 class GuestViewBase;
 
 // A GuestViewEvent is a wrapper class for a GuestView event.
 // GuestViewEvents may be queued until the guest is attached to a container.
 // This wrapper class holds all the necessary information to fire the event
 // on attachment. GuestViewEvents are owned by GuestViewBase.
 class GuestViewEvent {
  public:
   GuestViewEvent(const std::string& name,
                  scoped_ptr<base::DictionaryValue> args);
   ~GuestViewEvent();
 
   // This method will dispatch the event to the specified |guest|'s embedder and
-  // use the provided |instance_id| for routing. After dispatch, this object
-  // will self-destruct.
+  // use the provided |instance_id| for routing.
   void Dispatch(GuestViewBase* guest, int instance_id);
 
 private:
   const std::string name_;
   scoped_ptr<base::DictionaryValue> args_;
 
   DISALLOW_COPY_AND_ASSIGN(GuestViewEvent);
 };
 
 }  // namespace guest_view
 
 #endif  // COMPONENTS_GUEST_VIEW_BROWSER_GUEST_VIEW_EVENT_H_