Update SupportsUserData uses with unique_ptr.

chrome/browser/media/cast_remoting_connector.h

 // Copyright 2016 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 CHROME_BROWSER_MEDIA_CAST_REMOTING_CONNECTOR_H_
 #define CHROME_BROWSER_MEDIA_CAST_REMOTING_CONNECTOR_H_
 
 #include <set>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 48 matching lines @@
 // responsible for passing small binary messages between the source and sink,
 // while the CastRemotingSender handles the high-volume media data transfer.
 //
 // Please see the unit tests in cast_remoting_connector_unittest.cc as a
 // reference for how CastRemotingConnector and a Cast Provider interact to
 // start/execute/stop remoting sessions.
 class CastRemotingConnector
     : public base::SupportsUserData::Data,
       public media_router::MediaRoutesObserver {
  public:
+  ~CastRemotingConnector() final;
+
   // Returns the instance of the CastRemotingConnector associated with
   // |source_contents|, creating a new instance if needed.
   static CastRemotingConnector* Get(content::WebContents* source_contents);
 
   // Used by ChromeContentBrowserClient to request a binding to a new
   // Remoter for each new source in a render frame.
   static void CreateMediaRemoter(content::RenderFrameHost* render_frame_host,
                                  media::mojom::RemotingSourcePtr source,
                                  media::mojom::RemoterRequest request);
 
@@ skipping 13 matching lines @@
   // A RouteMessageObserver for the remoting route that passes messages from the
   // Cast Provider back to this connector. An instance of this class only exists
   // while a remoting route is available, and is owned by CastRemotingConnector.
   class MessageObserver;
 
   // Main constructor. |media_source_id| refers to any remoted content managed
   // by this instance (i.e., any remoted content from one tab/WebContents).
   CastRemotingConnector(media_router::MediaRouter* router,
                         const media_router::MediaSource::Id& media_source_id);
 
-  ~CastRemotingConnector() final;
-
   // Creates a RemotingBridge that implements the requested Remoter service, and
   // binds it to the interface |request|.
   void CreateBridge(media::mojom::RemotingSourcePtr source,
                     media::mojom::RemoterRequest request);
 
   // Called by the RemotingBridge constructor/destructor to register/deregister
   // an instance. This allows this connector to broadcast notifications to all
   // active sources.
   void RegisterBridge(RemotingBridge* bridge);
   void DeregisterBridge(RemotingBridge* bridge,
@@ skipping 84 matching lines @@
   base::WeakPtrFactory<CastRemotingConnector> weak_factory_;
 
   // Key used with the base::SupportsUserData interface to search for an
   // instance of CastRemotingConnector owned by a WebContents.
   static const void* const kUserDataKey;
 
   DISALLOW_COPY_AND_ASSIGN(CastRemotingConnector);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_CAST_REMOTING_CONNECTOR_H_