Plumb audio focus support for spitzer clients.

content/browser/media/android/media_session_controller.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 CONTENT_BROWSER_MEDIA_ANDROID_MEDIA_SESSION_CONTROLLER_H_
 #define CONTENT_BROWSER_MEDIA_ANDROID_MEDIA_SESSION_CONTROLLER_H_
 
 #include "base/time/time.h"
 #include "content/browser/media/android/media_session_observer.h"
 #include "content/common/content_export.h"
@@ skipping 23 matching lines @@
   // Note: Once a session has been initialized with |has_audio| as true, all
   // future calls to Initialize() will retain this flag.
   // TODO(dalecurtis): Delete sticky audio once we're no longer using WMPA and
   // the BrowserMediaPlayerManagers.  Tracked by http://crbug.com/580626
   bool Initialize(bool has_audio, bool is_remote, base::TimeDelta duration);
 
   // Must be called when a pause occurs on the renderer side media player; keeps
   // the MediaSession instance in sync with renderer side behavior.
   void OnPlaybackPaused();
 
+  bool is_playing() const { return is_playing_; }
+
   // MediaSessionObserver implementation.
   void OnSuspend(int player_id) override;
   void OnResume(int player_id) override;
   void OnSetVolumeMultiplier(int player_id, double volume_multiplier) override;
 
   // Test helpers.
   int get_player_id_for_testing() const { return player_id_; }
 
  private:
   const WebContentsObserver::MediaPlayerId id_;
 
   // Non-owned pointer; |media_web_contents_observer_| is the owner of |this|.
   MediaWebContentsObserver* const media_web_contents_observer_;
 
   // Non-owned pointer; lifetime is the same as |media_web_contents_observer_|.
   MediaSession* const media_session_;
 
   int player_id_ = 0;
   bool has_session_ = false;
+  bool is_playing_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(MediaSessionController);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_ANDROID_MEDIA_SESSION_CONTROLLER_H_