Added UMA metrics for screen capture 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 b39ab07256f79f37be562ed023f089f8b26ee190..7081af8ca862a40b2e64bfe867985f87b2bb1602 100644
--- a/ash/metrics/user_metrics_recorder.cc
+++ b/ash/metrics/user_metrics_recorder.cc
@@ -494,11 +494,18 @@ void UserMetricsRecorder::RecordUserMetricsAction(UserMetricsAction action) {
     case UMA_STATUS_AREA_NETWORK_SETTINGS_CLICKED:
       base::RecordAction(
           base::UserMetricsAction("StatusArea_Network_Settings"));
-      break;
     case UMA_STATUS_AREA_OS_UPDATE_DEFAULT_SELECTED:
       base::RecordAction(
           base::UserMetricsAction("StatusArea_OS_Update_Default_Selected"));
       break;
+    case UMA_STATUS_AREA_SCREEN_CAPTURE_DEFAULT_STOP:
+      base::RecordAction(
+          base::UserMetricsAction("StatusArea_ScreenCapture_Default_Stop"));
+      break;
+    case UMA_STATUS_AREA_SCREEN_CAPTURE_NOTIFICATION_STOP:
+      base::RecordAction(base::UserMetricsAction(
+          "StatusArea_ScreenCapture_Notification_Stop"));
+      break;
     case UMA_STATUS_AREA_SHOW_NETWORK_CONNECTION_DETAILS:
       base::RecordAction(
           base::UserMetricsAction("StatusArea_Network_ConnectionDetails"));