Add more information to existing notification_* events.

Include calling UID/PID in the existing
notification_{enqueue/cancel/cancel_all} event logs.

Include a new "reason" arg for cancel + cancel_all to
identify listener vs noman vs statusbarmgr calls.

Found and fixed a cancelAll path (from statusbarmgr)
that was not logging at all.

Bug:13442201
Change-Id: I2e1f875076a96b1fe3b86e8990641efb1cadfcfb
diff --git a/services/core/java/com/android/server/EventLogTags.logtags b/services/core/java/com/android/server/EventLogTags.logtags
index 399e7d1..0f78c9b 100644
--- a/services/core/java/com/android/server/EventLogTags.logtags
+++ b/services/core/java/com/android/server/EventLogTags.logtags
@@ -52,12 +52,12 @@
 # NotificationManagerService.java
 # ---------------------------
 # when a NotificationManager.notify is called
-2750 notification_enqueue (pkg|3),(id|1|5),(tag|3),(userid|1|5),(notification|3)
+2750 notification_enqueue (uid|1|5),(pid|1|5),(pkg|3),(id|1|5),(tag|3),(userid|1|5),(notification|3)
 # when someone tries to cancel a notification, the notification manager sometimes
 # calls this with flags too
-2751 notification_cancel (pkg|3),(id|1|5),(tag|3),(userid|1|5),(required_flags|1),(forbidden_flags|1)
+2751 notification_cancel (uid|1|5),(pid|1|5),(pkg|3),(id|1|5),(tag|3),(userid|1|5),(required_flags|1),(forbidden_flags|1),(reason|1|5),(listener|3)
 # when someone tries to cancel all of the notifications for a particular package
-2752 notification_cancel_all (pkg|3),(userid|1|5),(required_flags|1),(forbidden_flags|1)
+2752 notification_cancel_all (uid|1|5),(pid|1|5),(pkg|3),(userid|1|5),(required_flags|1),(forbidden_flags|1),(reason|1|5),(listener|3)
 
 
 # ---------------------------