chromeos: Notify powerd about video activity via D-Bus.
This removes the old code that set a _CHROME_VIDEO_TIME
property on the X root window and replaces it with code that
makes a HandleVideoActivity method call to powerd.
BUG=chromium-os:31351
TEST=manual: went to youtube and checked that powerd logs "Got HandleVideoActivity method call" every five seconds
Review URL: https://chromiumcodereview.appspot.com/10456056
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@140540 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/chromeos/power/video_activity_notifier.h b/chrome/browser/chromeos/power/video_activity_notifier.h
new file mode 100644
index 0000000..bfbb01f3
--- /dev/null
+++ b/chrome/browser/chromeos/power/video_activity_notifier.h
@@ -0,0 +1,34 @@
+// Copyright (c) 2012 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_POWER_VIDEO_ACTIVITY_NOTIFIER_H_
+#define CHROME_BROWSER_CHROMEOS_POWER_VIDEO_ACTIVITY_NOTIFIER_H_
+#pragma once
+
+#include "ash/wm/video_detector.h"
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/time.h"
+
+namespace chromeos {
+
+// Notifies the power manager when a video is playing.
+class VideoActivityNotifier : public ash::VideoDetectorObserver {
+ public:
+ VideoActivityNotifier();
+ virtual ~VideoActivityNotifier();
+
+ // ash::VideoDetectorObserver implementation.
+ virtual void OnVideoDetected() OVERRIDE;
+
+ private:
+ // Last time that the power manager was notified.
+ base::TimeTicks last_notify_time_;
+
+ DISALLOW_COPY_AND_ASSIGN(VideoActivityNotifier);
+};
+
+} // namespace chromeos
+
+#endif // CHROME_BROWSER_CHROMEOS_POWER_VIDEO_ACTIVITY_NOTIFIER_H_
