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

tools/metrics/actions/actions.xml

 <!--
 Copyright 2014 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.
 -->
 
 <!--
 This file is a comprehensive list of Chrome user actions along with the owner
 and description for each user action. A user action should be tied to an actual
 action taken by a user. It should be logged immediately after a user takes the
@@ skipping 13792 matching lines @@
   </description>
 </action>
 
 <action name="StatusArea_Cast_StopCast">
   <owner>jdufault@chromium.org</owner>
   <description>
     Counts the number of times the user has stopped a cast from the system tray.
   </description>
 </action>
 
+<action name="StatusArea_Display_Default_Selected">
+  <owner>bruthig@chromium.org</owner>
+  <owner>tbuckley@chromium.org</owner>
+  <description>
+    Counts the number of times the user selects the display row in the system
+    menu. This action does not always open the display settings, e.g. if the row
+    is slected from the lock screen. Use the
+    StatusArea_Display_Default_ShowSettings metric to see how often the settings
+    are actually launched.
+  </description>
+</action>
+
+<action name="StatusArea_Display_Default_ShowSettings">
+  <owner>bruthig@chromium.org</owner>
+  <owner>tbuckley@chromium.org</owner>
+  <description>
+    Counts the number of times the display settings are opened as a result of
+    the user selecting the display row in the system menu.
+  </description>
+</action>
+
+<action name="StatusArea_Display_Notification_Created">
+  <owner>bruthig@chromium.org</owner>
+  <owner>tbuckley@chromium.org</owner>
+  <description>
+    Counts the number of times a new display notification is added to the
+    notification center.
+  </description>
+</action>
+
+<action name="StatusArea_Display_Notification_Selected">
+  <owner>bruthig@chromium.org</owner>
+  <owner>tbuckley@chromium.org</owner>
+  <description>
+    Counts the number of times the user selects the display notification. This
+    action does not always open the display settings, e.g. if the notification
+    is selected from the lock screen. Use the
+    StatusArea_Display_Notification_Show_Settings metric to see how often the
+    settings are actually launched. Note these notifications are managed by the
+    notification center.
+  </description>
+</action>
+
+<action name="StatusArea_Display_Notification_Show_Settings">
+  <owner>bruthig@chromium.org</owner>
+  <owner>tbuckley@chromium.org</owner>
+  <description>
+    Counts the number of times the display settings are opened as a result of
+    the user selecting the display notification. Note these notifications are
+    managed by the notification center.
+  </description>
+</action>
+
 <action name="StatusArea_Drive_CancelOperation">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
 </action>
 
 <action name="StatusArea_Drive_Detailed">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
 </action>
 
@@ skipping 1232 matching lines @@
 <action name="webapps.AddShortcut.Manifest">
   <owner>mlamouri@chromium.org</owner>
   <description>
     Shortcut added to the homescreen with a valid Manifest. This action will be
     recorded in addition to AppShortcut, AppShortcutApple and Bookmark actions
     to keep a trend of whether the webapp also add meta tags.
   </description>
 </action>
 
 </actions>