Change notification cmd line enabling to use the new RuntimeEnabledFeatures code.

BUG=25318
TEST=none

Review URL: http://codereview.chromium.org/339093

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@30660 0039d316-1c4b-4281-b951-d872f2087c98
void RenderThread::WidgetHidden() {
  DCHECK(hidden_widget_count_ < widget_count_);
  hidden_widget_count_++ ;
  if (widget_count_ && hidden_widget_count_ == widget_count_) {
    idle_notification_delay_in_s_ = kInitialIdleHandlerDelayS;

    MessageLoop::current()->PostDelayedTask(FROM_HERE,
        task_factory_->NewRunnableMethod(&RenderThread::IdleHandler),
        static_cast<int64>(floor(idle_notification_delay_in_s_)) * 1000);
  }
}

void RenderThread::WidgetHidden() {
  DCHECK(hidden_widget_count_ < widget_count_);
  hidden_widget_count_++ ;
  if (widget_count_ && hidden_widget_count_ == widget_count_) {
    idle_notification_delay_in_s_ = kInitialIdleHandlerDelayS;

    MessageLoop::current()->PostDelayedTask(FROM_HERE,
        task_factory_->NewRunnableMethod(&RenderThread::IdleHandler),
        static_cast<int64>(floor(idle_notification_delay_in_s_)) * 1000);
  }
}
