Add metrics logging for fingerprint swipe for notification panel.

Add metrics log when fingerprint swipe to expand/collapse notification
panel is handled, and increment the notification and quick setting open
count correspondingly.

Bug: 29257528
Change-Id: Ic24c6463a4400711874602157e2fcadc7f0f6da6
diff --git a/proto/src/metrics_constants.proto b/proto/src/metrics_constants.proto
index 0106f7f0..d9f2bac 100644
--- a/proto/src/metrics_constants.proto
+++ b/proto/src/metrics_constants.proto
@@ -2197,6 +2197,12 @@
     // Night Light on
     SETTINGS_CONDITION_NIGHT_DISPLAY = 492;
 
+    // System navigation key up.
+    ACTION_SYSTEM_NAVIGATION_KEY_UP = 493;
+
+    // System navigation key down.
+    ACTION_SYSTEM_NAVIGATION_KEY_DOWN = 494;
+
     // ---- End N-MR1 Constants, all N-MR1 constants go above this line ----
     // Add new aosp constants above this line.
     // END OF AOSP CONSTANTS