Migrate AudioFocusChangeListener to browser and always send GAIN

content/browser/media/android/browser_media_player_manager.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 CONTENT_BROWSER_MEDIA_ANDROID_BROWSER_MEDIA_PLAYER_MANAGER_H_
 #define CONTENT_BROWSER_MEDIA_ANDROID_BROWSER_MEDIA_PLAYER_MANAGER_H_
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/time/time.h"
 #include "content/browser/android/content_video_view.h"
+#include "content/browser/media/android/audio_focus_manager.h"
 #include "content/common/content_export.h"
 #include "content/common/media/media_player_messages_enums_android.h"
 #include "content/public/browser/android/content_view_core.h"
 #include "ipc/ipc_message.h"
 #include "media/base/android/media_player_android.h"
 #include "media/base/android/media_player_manager.h"
 #include "media/base/android/media_url_interceptor.h"
 #include "ui/gfx/geometry/rect_f.h"
 #include "url/gurl.h"
 
@@ skipping 146 matching lines @@
   void ReleasePlayer(media::MediaPlayerAndroid* player);
 
 #if defined(VIDEO_HOLE)
   void ReleasePlayerOfExternalVideoSurfaceIfNeeded(int future_player);
   void OnRequestExternalSurface(int player_id, const gfx::RectF& rect);
 #endif  // defined(VIDEO_HOLE)
 
   RenderFrameHost* const render_frame_host_;
 
   MediaPlayersObserver* audio_monitor_;
+  scoped_ptr<AudioFocusManager> audio_focus_manager_;
 
   // An array of managed players.
   ScopedVector<media::MediaPlayerAndroid> players_;
 
   // The fullscreen video view object or NULL if video is not played in
   // fullscreen.
   scoped_ptr<ContentVideoView> video_view_;
 
 #if defined(VIDEO_HOLE)
   scoped_ptr<ExternalVideoSurfaceContainer> external_video_surface_container_;
@@ skipping 12 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<BrowserMediaPlayerManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserMediaPlayerManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_ANDROID_BROWSER_MEDIA_PLAYER_MANAGER_H_