Add media Remoter mojo interface and RendererWMPDelegate accessor.

media/blink/webmediaplayer_delegate.h

 // Copyright 2013 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 MEDIA_BLINK_WEBMEDIAPLAYER_DELEGATE_H_
 #define MEDIA_BLINK_WEBMEDIAPLAYER_DELEGATE_H_
 
+#include "media/mojo/interfaces/remoter.mojom.h"
+
 namespace blink {
 class WebMediaPlayer;
 }
 namespace media {
 
 // An interface to allow a WebMediaPlayer to communicate changes of state to
 // objects that need to know.
 class WebMediaPlayerDelegate {
  public:
   class Observer {
@@ skipping 43 matching lines @@
 
   // The specified player was destroyed or suspended and will no longer accept
   // Observer::OnPlay() or Observer::OnPause() calls. This may be called
   // multiple times in row. Note: Clients must still call RemoveObserver() to
   // unsubscribe from callbacks.
   virtual void PlayerGone(int delegate_id) = 0;
 
   // Returns whether the render frame is currently hidden.
   virtual bool IsHidden() = 0;
 
+  // Returns a pointer to the media Remoter, or null if none is available.
+  virtual mojom::Remoter* GetRemoter() = 0;
+
  protected:
   virtual ~WebMediaPlayerDelegate() {}
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BLINK_WEBMEDIAPLAYER_DELEGATE_H_