Revert 155224 - Add is_fullscreen to video updates

chrome/browser/chromeos/power/video_activity_notifier.cc

Index: chrome/browser/chromeos/power/video_activity_notifier.cc
===================================================================
--- chrome/browser/chromeos/power/video_activity_notifier.cc	(revision 155231)
+++ chrome/browser/chromeos/power/video_activity_notifier.cc	(working copy)
@@ -25,12 +25,13 @@
   ash::Shell::GetInstance()->video_detector()->RemoveObserver(this);
 }
 
-void VideoActivityNotifier::OnVideoDetected(bool is_fullscreen) {
+void VideoActivityNotifier::OnVideoDetected() {
   base::TimeTicks now = base::TimeTicks::Now();
+  // InSeconds() truncates rather than rounding, so it's fine for this
+  // comparison.
   if (last_notify_time_.is_null() ||
       (now - last_notify_time_).InSeconds() >= kNotifyIntervalSec) {
-    DBusThreadManager::Get()->GetPowerManagerClient()->
-        NotifyVideoActivity(now, is_fullscreen);
+    DBusThreadManager::Get()->GetPowerManagerClient()->NotifyVideoActivity(now);
     last_notify_time_ = now;
   }
 }