Make the histograms for setting the default browser consistent

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 2571 matching lines @@
   <description>
     Records display of prompt (notification) to install Data Saver extension.
   </description>
 </action>
 
 <action name="Debugger">
   <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="DefaultBrowserInfoBar_Accept">
+  <owner>pmonette@chromium.org</owner>
+  <description>
+    The user clicked &quot;Set as default&quot; on the info bar.
+  </description>
+</action>
+
+<action name="DefaultBrowserInfoBar_DontAskAgain">
+  <owner>pmonette@chromium.org</owner>
+  <description>
+    The user clicked &quot;Don't ask again&quot; on the info bar.
+  </description>
+</action>
+
 <action name="Delete">
   <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="DeleteBackward">
   <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 7635 matching lines @@
   <owner>michaelpg@chromium.org</owner>
   <description>Settings: Manage search engines...: Make default</description>
 </action>
 
 <action name="Options_SensitivitySlider_Changed">
   <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="Options_SetAsDefaultBrowser">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
-  <description>Please enter the description of this user action.</description>
+  <owner>pmonette@chromium.org</owner>
+  <description>
+    The user clicked &quot;Make Chrome the default browser&quot; in the settings
+    page.
+  </description>
 </action>
 
 <action name="Options_SetDownloadDirectory">
   <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="Options_SetTimeDialog_Show">
   <owner>michaelpg@chromium.org</owner>
   <description>Set system time dialog was launched.</description>
@@ skipping 2902 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>