Mandate unique_ptr for base::IDMap in IDMapOwnPointer mode.

third_party/WebKit/public/platform/modules/notifications/WebNotificationManager.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 WebNotificationManager_h
 #define WebNotificationManager_h
 
 #include "public/platform/WebCallbacks.h"
 #include "public/platform/WebString.h"
 #include "public/platform/WebVector.h"
@@ skipping 37 matching lines @@
   virtual void showPersistent(const WebSecurityOrigin&,
                               const WebNotificationData&,
                               std::unique_ptr<WebNotificationResources>,
                               WebServiceWorkerRegistration*,
                               WebNotificationShowCallbacks*) = 0;
 
   // Asynchronously gets the persistent notifications belonging to the Service
   // Worker Registration.  If |filterTag| is not an empty string, only the
   // notification with the given tag will be considered. Will take ownership of
   // the WebNotificationGetCallbacks object.
-  virtual void getNotifications(const WebString& filterTag,
-                                WebServiceWorkerRegistration*,
-                                WebNotificationGetCallbacks*) = 0;
+  virtual void getNotifications(
+      const WebString& filterTag,
+      WebServiceWorkerRegistration*,
+      std::unique_ptr<WebNotificationGetCallbacks>) = 0;
 
   // Closes a notification previously shown, and removes it if being shown.
   virtual void close(WebNotificationDelegate*) = 0;
 
   // Closes a persistent notification identified by its notification Id.
   virtual void closePersistent(const WebSecurityOrigin&,
                                const WebString& tag,
                                const WebString& notificationId) = 0;
 
   // Indicates that the delegate object is being destroyed, and must no longer
   // be used by the embedder to dispatch events.
   virtual void notifyDelegateDestroyed(WebNotificationDelegate*) = 0;
 };
 
 }  // namespace blink
 
 #endif  // WebNotificationManager_h