Add UMA for the content suggestions settings

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.
 
@@ skipping 3329 matching lines @@
 <action name="ConnectivityDiagnostics.UA.TestResultExpanded">
   <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="ConnectivityDiagnostics.UA.TestSuiteRun">
   <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="ContentSuggestions.NotificationsAction.Settings">
+  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

[Michael van Ouwerkerk, 2017/04/05 10:27:42]

Please list the metric's owners :-)

[dgn, 2017/04/05 13:54:07]

Removed this one entirely to use an existing histogram

+  <description>Please enter the description of the metric.</description>

[Michael van Ouwerkerk, 2017/04/05 10:27:42]

Please enter the description of the metric :-)

[dgn, 2017/04/05 13:54:07]

Obsolete.

+</action>
+
+<action name="ContentSuggestions.NotificationsPreferenceOff">
+  <owner>dgn@chromium.org</owner>
+  <owner>finkm@chromium.org</owner>
+  <description>
+    The user turned off the content suggestions notifications in the settings.
+  </description>
+</action>
+
+<action name="ContentSuggestions.NotificationsPreferenceOn">
+  <owner>dgn@chromium.org</owner>
+  <owner>finkm@chromium.org</owner>
+  <description>
+    The user turned on the content suggestions notifications in the settings.
+  </description>
+</action>
+
+<action name="ContentSuggestions.RemoteSuggestionsPreferenceOff">
+  <owner>dgn@chromium.org</owner>
+  <owner>finkm@chromium.org</owner>
+  <description>
+    The user turned off remote content suggestions in the settings.
+  </description>
+</action>
+
+<action name="ContentSuggestions.RemoteSuggestionsPreferenceOn">
+  <owner>dgn@chromium.org</owner>
+  <owner>finkm@chromium.org</owner>
+  <description>
+    The user turned on remote content suggestions in the settings.
+  </description>
+</action>
+
 <action name="ContextualSearch.BackPressClose">
   <owner>donnd@chromium.org</owner>
   <description>
     Contextual Search closed when the user pressed the Back button.
   </description>
 </action>
 
 <action name="ContextualSearch.BasePageScrollClose">
   <owner>donnd@chromium.org</owner>
   <description>
@@ skipping 6427 matching lines @@
   <owner>aurimas@chromium.org</owner>
   <description>User pressed 'Close all tabs' in the app menu.</description>
 </action>
 
 <action name="MobileMenuCloseTab">
   <owner>aurimas@chromium.org</owner>
   <description>User pressed 'Close tab' in the app menu.</description>
   <obsolete>This menu item was never added to the app menu.</obsolete>
 </action>
 
+<action name="MobileMenuDataSaverOpened">

[Michael van Ouwerkerk, 2017/04/05 10:27:42]

Wait, what? Is this a free rebase gift?

+  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <description>Please enter the description of the metric.</description>
+</action>
+
 <action name="MobileMenuDirectShare">
   <owner>aurimas@chromium.org</owner>
   <description>
     User pressed the application icon next to 'Share' to share directly with the
     most recently used application.
   </description>
 </action>
 
 <action name="MobileMenuDownloadManager">
   <owner>dfalcantara@chromium.org</owner>
@@ skipping 6894 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>