Change logging of about:flags from actions to a histogram.

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 20 matching lines @@
 </action>
 
 <action name="AboutConflicts">
   <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="AboutFlags_StartupTick" not_user_triggered="true">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_background-webapps">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_click-to-play">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_cloud-print">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_cloud-print-proxy">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_confirm-to-quit">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_conflicting-modules-check">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_data-reduction-proxy-lo-fi@1">
   <owner>bengr@chromium.org</owner>
   <owner>megjablon@chromium.org</owner>
   <description>
     User enabled flag that Forces Data Saver Lo-Fi mode to be always enabled via
     chrome://flags. The action is emitted once per startup when the flag is
     active.
   </description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_data-reduction-proxy-lo-fi@2">
   <owner>bengr@chromium.org</owner>
   <owner>megjablon@chromium.org</owner>
   <description>
     User enabled flag that Forces Data Saver Lo-Fi mode to be enabled only on
     cellular connection via chrome://flags. The action is emitted once per
     startup when the flag is active.
   </description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_data-reduction-proxy-lo-fi@3">
   <owner>bengr@chromium.org</owner>
   <owner>megjablon@chromium.org</owner>
   <description>
     User enabled flag that Forces Data Saver Lo-Fi mode to be disabled via
     chrome://flags. The action is emitted once per startup when the flag is
     active.
   </description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_data-reduction-proxy-lo-fi@4">
   <owner>bengr@chromium.org</owner>
   <owner>megjablon@chromium.org</owner>
   <description>
     User enabled flag that Forces Data Saver Lo-Fi mode to be enabled only on
     slow connections via chrome://flags. The action is emitted once per startup
     when the flag is active.
   </description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_disable-chrome-to-mobile">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_disable-outdated-plugins">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_disable-pnacl">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
   <obsolete>This flag no longer exists.</obsolete>
 </action>
 
 <action name="AboutFlags_disable-print-preview">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_disable-smooth-scrolling">
   <owner>skobes@chromium.org</owner>
   <description>
     User flag to disable smooth scroll animations on wheel and keyboard input.
   </description>
   <obsolete>This flag no longer exists.</obsolete>
 </action>
 
 <action name="AboutFlags_disable-views-rect-based-targeting">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_disable-website-settings">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_dns-server">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_document-passive-event-listeners">
   <owner>dtapuska@chromium.org</owner>
   <description>
     User enabled the PassiveDocumentEventListeners via chrome://flags.
   </description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_downloads-new-ui">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_enable-chrome-to-mobile">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_enable-experimental-web-platform-features">
   <owner>rbyers@chromium.org</owner>
   <description>
     User flag to enable web APIs marked as status=experimental
     RuntimeEnabledFeatures.
   </description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_enable-nacl">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_enable-nacl-debug">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_enable-nacl-exception-handling">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_enable-native-cups">
   <owner>skau@chromium.org</owner>
   <description>
     Records if native cups printing is enabled in chrome://flags
   </description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_enable-pnacl">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_enable-pointer-events">
   <owner>nzolghadr@chromium.org</owner>
   <description>
     User enabled the &quot;PointerEvent&quot; blink feature via chrome://flags.
   </description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_enable-smooth-scrolling">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_enable-web-bluetooth">
   <owner>jyasskin@chromium.org</owner>
   <owner>ortuno@chromium.org</owner>
   <owner>scheib@chromium.org</owner>
   <description>User enabled Web Bluetooth via chrome://flags.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_enable-website-settings">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_enable-wifi-credential-sync">
   <owner>quiche@chromium.org</owner>
   <description>
     User enabled WiFi credential sync via chrome://flags.
   </description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_experimental-location-features">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_expose-for-tabs">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_extension-apis">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_focus-existing-tab-on-open">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_gpu-canvas-2d">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_indexeddb-use-leveldb">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_instant-autocomplete-immediately">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_instant-type">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_mark-non-secure-as">
   <owner>palmer@chromium.org</owner>
   <owner>felt@chromium.org</owner>
   <description>
     This flag lets users opt into or out of marking HTTP as Dubious or as
     Non-Secure. The action is emitted once per startup when the flag is active.
   </description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_match-preview">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_my-special-feature">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_nacl-debug-mask">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_nacl-gdb">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_nacl-gdb-script">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_new-audio-rendering-mixing-strategy">
   <owner>grunell@chromium.org</owner>
   <owner>olka@chromium.org</owner>
   <description>
     User enabled flag to control new audio rendering mixing strategy.
   </description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_page-prerender">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_passive-event-listeners-due-to-fling">
   <owner>dtapuska@chromium.org</owner>
   <description>
     User enabled the PassiveEventListenersDueToFling via chrome://flags.
   </description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_passive-listener-default">
   <owner>dtapuska@chromium.org</owner>
   <description>
     User enabled flag to adjust the default value of 'passive' field in
     AddEventListenerOptions dictionary when a javascript event handler is added.
   </description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_prerender-from-omnibox">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_print-preview">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_remoting">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_save-page-as-mhtml">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_smooth-scrolling">
   <owner>skobes@chromium.org</owner>
   <description>
     User flag to disable smooth scroll animations on wheel and keyboard input.
   </description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_snap-start">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_tabbed-options">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_verbatim-instant">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_vertical-tabs">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_views-use-rect-based-targeting">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="AboutFlags_xss-auditor">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="Accel_Accessible_Focus_Next">
   <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="Accel_Accessible_Focus_Previous">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
@@ skipping 13767 matching lines @@
 
 <action name="Stars_SignInPromoHeader_Displayed">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of the metric.</description>
   <obsolete>Replaced with Signin_Impression_FromBookmarkManager.</obsolete>
 </action>
 
 <action name="StartupTick" not_user_triggered="true">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
+  <obsolete>Deprecated in favor of AboutFlags.Seen histogram.</obsolete>
 </action>
 
 <action name="StatusArea_Accessability_DetailedView">
   <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_Audio_CurrentInputDevice">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
@@ skipping 1417 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>