Add UMA stats for Chromoting connection details.

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 immediatly after a user takes the
@@ skipping 2049 matching lines @@
 <action name="Cast_Sender_CastPlayRequested">
   <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="Cast_Sender_YouTubeDeviceSelected">
   <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="Chromoting.Connections.Authenticated">
+  <owner>anandc@chromium.org</owner>
+  <owner>sergeyu@chromium.org</owner>
+  <description>Count of Chromoting Authenticated events.</description>
+</action>
+
+<action name="Chromoting.Connections.Closed">
+  <owner>anandc@chromium.org</owner>
+  <owner>sergeyu@chromium.org</owner>
+  <description>Count of Chromoting Closed events.</description>
+</action>
+
+<action name="Chromoting.Connections.Connected">
+  <owner>anandc@chromium.org</owner>
+  <owner>sergeyu@chromium.org</owner>
+  <description>Count of Chromoting Connected events.</description>
+</action>
+
+<action name="Chromoting.Connections.Connecting">
+  <owner>anandc@chromium.org</owner>
+  <owner>sergeyu@chromium.org</owner>
+  <description>Count of Chromoting Connecting events.</description>
+</action>
+
+<action name="Chromoting.Connections.Dropped">
+  <owner>anandc@chromium.org</owner>
+  <owner>sergeyu@chromium.org</owner>
+  <description>Count of Chromoting Dropped events.</description>
+</action>

[Ilya Sherman, 2015/08/20 23:42:46]

These don't seem like user actions.  Have you considered using an enumerated
histogram instead?

[anandc, 2015/08/21 03:15:42]

While these are not user actions, they are events experienced by users, so went
with user-actions.

Would enumerated histograms allow us to do side-by-side comparisons? I notice
that on the UMA dashboard, only the sum is shown for enumerated histograms. See
https://uma.googleplex.com/p/chrome/histograms/?dayCount=7&endDate=08-19-2015...
for example.
We actually want to compare each of these metrics across versions.

+
 <action name="ClearAuthenticationCache">
   <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="ClearBrowsingData_Autofill">
   <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 10610 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>