mash: Change the MediaDelegate to a Media{Controller,Client}.

ash/common/media_delegate.h

Index: ash/common/media_delegate.h
diff --git a/ash/common/media_delegate.h b/ash/common/media_delegate.h
deleted file mode 100644
index 018add713ced81231f2b53e295f2232a443ab747..0000000000000000000000000000000000000000
--- a/ash/common/media_delegate.h
+++ /dev/null
@@ -1,40 +0,0 @@
-// 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 ASH_COMMON_MEDIA_DELEGATE_H_
-#define ASH_COMMON_MEDIA_DELEGATE_H_
-
-#include "ash/public/cpp/session_types.h"
-
-namespace ash {
-
-enum MediaCaptureState {
-  MEDIA_CAPTURE_NONE = 0,
-  MEDIA_CAPTURE_AUDIO = 1 << 0,
-  MEDIA_CAPTURE_VIDEO = 1 << 1,
-  MEDIA_CAPTURE_AUDIO_VIDEO = MEDIA_CAPTURE_AUDIO | MEDIA_CAPTURE_VIDEO,
-};
-
-// A delegate class to control media playback.
-class MediaDelegate {
- public:
-  virtual ~MediaDelegate() {}
-
-  // Handles the Next Track Media shortcut key.
-  virtual void HandleMediaNextTrack() = 0;
-
-  // Handles the Play/Pause Toggle Media shortcut key.
-  virtual void HandleMediaPlayPause() = 0;
-
-  // Handles the Previous Track Media shortcut key.
-  virtual void HandleMediaPrevTrack() = 0;
-
-  // Returns the current media recording state of web contents that belongs to
-  // the the user @ |index|. See session_types.h for a description of UserIndex.
-  virtual MediaCaptureState GetMediaCaptureState(UserIndex index) = 0;
-};
-
-}  // namespace ash
-
-#endif  // ASH_COMMON_MEDIA_DELEGATE_H_