Mandate unique_ptr for base::IDMap in IDMapOwnPointer mode.

content/renderer/screen_orientation/screen_orientation_dispatcher.cc

 // 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.
 
 #include "content/renderer/screen_orientation/screen_orientation_dispatcher.h"
 
+#include <memory>
+
 #include "content/common/screen_orientation_messages.h"
 
 namespace content {
 
 ScreenOrientationDispatcher::ScreenOrientationDispatcher(
     RenderFrame* render_frame)
     : RenderFrameObserver(render_frame) {
 }
 
 ScreenOrientationDispatcher::~ScreenOrientationDispatcher() {
@@ skipping 43 matching lines @@
     iterator.GetCurrentValue()->onError(blink::WebLockOrientationErrorCanceled);
     pending_callbacks_.Remove(iterator.GetCurrentKey());
   }
 }
 
 void ScreenOrientationDispatcher::lockOrientation(
     blink::WebScreenOrientationLockType orientation,
     blink::WebLockOrientationCallback* callback) {
   CancelPendingLocks();
 
-  int request_id = pending_callbacks_.Add(callback);
+  int request_id = pending_callbacks_.Add(
+      std::unique_ptr<blink::WebLockOrientationCallback>(callback));
   Send(new ScreenOrientationHostMsg_LockRequest(
       routing_id(), orientation, request_id));
 }
 
 void ScreenOrientationDispatcher::unlockOrientation() {
   CancelPendingLocks();
   Send(new ScreenOrientationHostMsg_Unlock(routing_id()));
 }
 
 }  // namespace content