chromeos: Notify power manager about user activity.

chromeos/dbus/power_manager_client.h

Index: chromeos/dbus/power_manager_client.h
diff --git a/chromeos/dbus/power_manager_client.h b/chromeos/dbus/power_manager_client.h
index d172c9356015a56d591d8f6cd07e805ca513369f..cced783ddf3cc16ff12d725aa9a078c0fb2c2648 100644
--- a/chromeos/dbus/power_manager_client.h
+++ b/chromeos/dbus/power_manager_client.h
@@ -172,6 +172,11 @@ class CHROMEOS_EXPORT PowerManagerClient {
   // NOTE: Like the previous request, this will also get triggered exactly once.
   virtual void RequestActiveNotification() = 0;
 
+  // Notifies the power manager that the user is active (i.e. generating input
+  // events).
+  virtual void NotifyUserActivity(
+      const base::TimeTicks& last_activity_time) = 0;
+
   // Notifies the power manager that a video is currently playing.
   virtual void NotifyVideoActivity(
       const base::TimeTicks& last_activity_time) = 0;