Cros Tablet: Add UMA stats for the user close actions in tablet mode.

ash/metrics/user_metrics_recorder.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/metrics/user_metrics_recorder.h"
 
 #include "ash/metrics/desktop_task_switch_metric_recorder.h"
 #include "ash/metrics/pointer_metrics_recorder.h"
 #include "ash/public/cpp/shelf_item.h"
 #include "ash/public/cpp/shelf_model.h"
@@ skipping 503 matching lines @@
       break;
     case UMA_STATUS_AREA_VPN_ADD_THIRD_PARTY_CLICKED:
       RecordAction(UserMetricsAction("StatusArea_VPN_AddThirdParty"));
       break;
     case UMA_STATUS_AREA_VPN_DISCONNECT_CLICKED:
       RecordAction(UserMetricsAction("StatusArea_VPN_Disconnect"));
       break;
     case UMA_STATUS_AREA_VPN_SETTINGS_OPENED:
       RecordAction(UserMetricsAction("StatusArea_VPN_Settings"));
       break;
+    case UMA_TABLET_WINDOW_CLOSE_THROUGH_CONTXT_MENU:
+      RecordAction(UserMetricsAction("Tablet_WindowCloseFromContextMenu"));
+      break;
+    case UMA_TABLET_WINDOW_CLOSE_THROUGH_CAPTION_BUTTON:
+      RecordAction(UserMetricsAction("Tablet_WindowCloseFromCaptionButton"));
+      break;
+    case UMA_TABLET_WINDOW_CLOSE_THROUGH_OVERVIEW_CLOSE_BUTTON:
+      RecordAction(UserMetricsAction("Tablet_WindowCloseFromOverviewButton"));
+      break;
     case UMA_TOGGLE_MAXIMIZE_CAPTION_CLICK:
       RecordAction(UserMetricsAction("Caption_ClickTogglesMaximize"));
       break;
     case UMA_TOGGLE_MAXIMIZE_CAPTION_GESTURE:
       RecordAction(UserMetricsAction("Caption_GestureTogglesMaximize"));
       break;
     case UMA_TOGGLE_SINGLE_AXIS_MAXIMIZE_BORDER_CLICK:
       RecordAction(
           UserMetricsAction("WindowBorder_ClickTogglesSingleAxisMaximize"));
       break;
@@ skipping 120 matching lines @@
   return IsUserActive() && !IsKioskModeActive() && !IsArcKioskModeActive();
 }
 
 void UserMetricsRecorder::StartTimer() {
   timer_.Start(FROM_HERE,
                base::TimeDelta::FromSeconds(kAshPeriodicMetricsTimeInSeconds),
                this, &UserMetricsRecorder::RecordPeriodicMetrics);
 }
 
 }  // namespace ash