Remove linked_ptr usage in //base.

components/guest_view/browser/guest_view_event.cc

 // 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.
 
 #include "components/guest_view/browser/guest_view_event.h"
 
 #include <utility>
 
+#include "base/logging.h"
 #include "components/guest_view/browser/guest_view_base.h"
 #include "components/guest_view/browser/guest_view_manager.h"
 
 namespace guest_view {
 
 GuestViewEvent::GuestViewEvent(const std::string& name,
                                scoped_ptr<base::DictionaryValue> args)
     : name_(name), args_(std::move(args)) {}
 
 GuestViewEvent::~GuestViewEvent() {
 }
 
 void GuestViewEvent::Dispatch(GuestViewBase* guest, int instance_id) {
+  DCHECK(args_) << "Dispatch was probably invoked twice!";
   GuestViewManager::FromBrowserContext(guest->browser_context())
       ->DispatchEvent(name_, std::move(args_), guest, instance_id);
-
-  delete this;
 }
 
 }  // namespace guest_view