Part 2 of base::IDMap refactor to eliminate IDMapOwnPointer/IDMapExternalPointer modes

content/renderer/push_messaging/push_messaging_dispatcher.h

 // Copyright 2014 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 CONTENT_RENDERER_PUSH_MESSAGING_PUSH_MESSAGING_DISPATCHER_H_
 #define CONTENT_RENDERER_PUSH_MESSAGING_PUSH_MESSAGING_DISPATCHER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 55 matching lines @@
 
   void OnSubscribeFromDocumentSuccess(int32_t request_id,
                                       const GURL& endpoint,
                                       const PushSubscriptionOptions& options,
                                       const std::vector<uint8_t>& p256dh,
                                       const std::vector<uint8_t>& auth);
 
   void OnSubscribeFromDocumentError(int32_t request_id,
                                     PushRegistrationStatus status);
 
-  IDMap<blink::WebPushSubscriptionCallbacks, IDMapOwnPointer>
+  IDMap<std::unique_ptr<blink::WebPushSubscriptionCallbacks>>
       subscription_callbacks_;
 
   DISALLOW_COPY_AND_ASSIGN(PushMessagingDispatcher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PUSH_MESSAGING_PUSH_MESSAGING_DISPATCHER_H_