Doze: Follow the notification light.

 - Send the notification light info up to SystemUI from NoMan.
 - Doze mode will now periodically pulse the display (once)
   if the notification light is active.
 - Change "tease" terminology to "pulse", which is the singular.
   Maintain the multi-pulse on buzz-beep-blink for now as extra
   emphasis.
 - Scrim controller now always takes number of pulses as an arg,
   to support a single pulse (used for notification light, and
   eventually pickup once available).
 - Dial down the display brightness when pulsing.

Bug:15863249
Change-Id: Ifb208a27e82b66cff1d0c04e5b7f758098ea29cf
diff --git a/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java b/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
index 463f763..c28e0bc 100644
--- a/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
+++ b/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
@@ -21,4 +21,6 @@
 public interface StatusBarManagerInternal {
     void setNotificationDelegate(NotificationDelegate delegate);
     void buzzBeepBlinked();
+    void notificationLightPulse(int argb, int onMillis, int offMillis);
+    void notificationLightOff();
 }