Media indicator for background recording task

chrome/browser/ui/ash/media_delegate_chromeos.h

+// Copyright 2014 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_UI_ASH_MEDIA_DELEGATE_CHROMEOS_H_
+#define CHROME_BROWSER_UI_ASH_MEDIA_DELEGATE_CHROMEOS_H_
+
+#include "ash/media_delegate.h"
+#include "base/memory/weak_ptr.h"
+#include "chrome/browser/media/media_capture_devices_dispatcher.h"
+
+class MediaDelegateChromeOS : public ash::MediaDelegate,
+                              MediaCaptureDevicesDispatcher::Observer {
+ public:
+  MediaDelegateChromeOS();
+  virtual ~MediaDelegateChromeOS();
+
+  // ash::MediaDelegate:
+  virtual void HandleMediaNextTrack() OVERRIDE;
+  virtual void HandleMediaPlayPause() OVERRIDE;
+  virtual void HandleMediaPrevTrack() OVERRIDE;
+  virtual ash::MediaCaptureState GetMediaCaptureState(
+      content::BrowserContext* context) OVERRIDE;
+
+  // MediaCaptureDevicesDispatcher::Observer:
+  virtual void OnRequestUpdate(int render_process_id,
+                               int render_view_id,
+                               const content::MediaStreamDevice& device,
+                               const content::MediaRequestState state) OVERRIDE;
+
+ private:
+  void NotifyMediaCaptureChange();
+
+  base::WeakPtrFactory<MediaDelegateChromeOS> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(MediaDelegateChromeOS);
+};
+
+#endif  // CHROME_BROWSER_UI_ASH_MEDIA_DELEGATE_CHROMEOS_H_