Added UMA metrics for display settings UI in the status area.

ash/metrics/user_metrics_recorder.cc

Index: ash/metrics/user_metrics_recorder.cc
diff --git a/ash/metrics/user_metrics_recorder.cc b/ash/metrics/user_metrics_recorder.cc
index 137199a08e16c2fc12c938a58620d7122d4706ed..4b78fa856794786cd479a8b8f7e5df197b862d0b 100644
--- a/ash/metrics/user_metrics_recorder.cc
+++ b/ash/metrics/user_metrics_recorder.cc
@@ -436,6 +436,14 @@ void UserMetricsRecorder::RecordUserMetricsAction(UserMetricsAction action) {
       base::RecordAction(
           base::UserMetricsAction("StatusArea_VirtualKeyboardDisabled"));
       break;
+    case UMA_STATUS_AREA_DISPLAY_DEFAULT_CLICKED:
+      base::RecordAction(
+          base::UserMetricsAction("StatusArea_Display_Default_Clicked"));
+      break;
+    case UMA_STATUS_AREA_DISPLAY_NOTIFICATION_CLICKED:
+      base::RecordAction(
+          base::UserMetricsAction("StatusArea_Display_Notification_Clicked"));
+      break;
     case UMA_STATUS_AREA_DISABLE_WIFI:
       base::RecordAction(
           base::UserMetricsAction("StatusArea_Network_WifiDisabled"));