Moving mediaplayer to the chrome filebrowser. Observable behaviour should not change.

chrome/browser/chromeos/extensions/media_player_event_router.h

+// Copyright (c) 2011 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_CHROMEOS_EXTENSIONS_MEDIA_PLAYER_EVENT_ROUTER_H_
+#define CHROME_BROWSER_CHROMEOS_EXTENSIONS_MEDIA_PLAYER_EVENT_ROUTER_H_
+#pragma once
+
+#include "base/basictypes.h"
+
+class Profile;
+template <typename T> struct DefaultSingletonTraits;
+
+// Event router class for events related to Mediaplayer.
+class ExtensionMediaPlayerEventRouter {
+ public:
+  static ExtensionMediaPlayerEventRouter* GetInstance();
+
+  void Init(Profile* profile);
+
+  void NotifyPlaylistChanged();
+
+ private:
+  Profile* profile_;
+
+  ExtensionMediaPlayerEventRouter();
+  friend struct DefaultSingletonTraits<ExtensionMediaPlayerEventRouter>;
+  DISALLOW_COPY_AND_ASSIGN(ExtensionMediaPlayerEventRouter);
+};
+
+#endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_MEDIA_PLAYER_EVENT_ROUTER_H_