[Night Light] CL2: Ash and system tray work

tools/metrics/actions/actions.xml

Index: tools/metrics/actions/actions.xml
diff --git a/tools/metrics/actions/actions.xml b/tools/metrics/actions/actions.xml
index f6914c723a45c8d12b7cb3cd30fc3bb42b2aac50..8152becfd47952bb4cbc77518b3a45792c7ff911 100644
--- a/tools/metrics/actions/actions.xml
+++ b/tools/metrics/actions/actions.xml
@@ -16322,6 +16322,13 @@ should be able to be added at any place in this file.
   <description>Please enter the description of this user action.</description>
 </action>
 
+<action name="Tray_NightLight">
+  <owner>afakhry@chromium.org</owner>
+  <description>
+    User action to toggle the Night Light feature on/off.

[Mark P, 2017/05/08 23:18:09]

optional nit: Everything here is a user action.  Perhaps drop that part of the
phrase, "Toggled the ..."

[afakhry, 2017/05/09 00:06:30]

I updated the comment.

+  </description>
+</action>
+
 <action name="Tray_Overview">
   <owner>bruthig@chromium.org</owner>
   <owner>tdanderson@chromium.org</owner>