Add tooltips to cr-policy-indicator

third_party/closure_compiler/externs/settings_private.js

 // Copyright 2015 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 was generated by:
 //   ./tools/json_schema_compiler/compiler.py.
 // NOTE: The format of types has changed. 'FooType' is now
 //   'chrome.settingsPrivate.FooType'.
 // Please run the closure compiler before committing changes.
 // See https://code.google.com/p/chromium/wiki/ClosureCompilation.
@@ skipping 37 matching lines @@
   ENFORCED: 'ENFORCED',
   RECOMMENDED: 'RECOMMENDED',
 };
 
 /**
  * @typedef {{
  *   key: string,
  *   type: !chrome.settingsPrivate.PrefType,
  *   value: *,
  *   policySource: (!chrome.settingsPrivate.PolicySource|undefined),
+ *   policySourceName: (string|undefined),
  *   policyEnforcement: (!chrome.settingsPrivate.PolicyEnforcement|undefined),
  *   recommendedValue: (*|undefined),
  *   extensionId: (string|undefined),
  *   readOnly: (boolean|undefined)
  * }}
  * @see https://developer.chrome.com/extensions/settingsPrivate#type-PrefObject
  */
 chrome.settingsPrivate.PrefObject;
 
 /**
@@ skipping 22 matching lines @@
  */
 chrome.settingsPrivate.getPref = function(name, callback) {};
 
 /**
  * <p>Fired when a set of prefs has changed.</p><p>|prefs| The prefs that
  * changed.</p>
  * @type {!ChromeEvent}
  * @see https://developer.chrome.com/extensions/settingsPrivate#event-onPrefsChanged
  */
 chrome.settingsPrivate.onPrefsChanged;