Add support for recommended settings to the internet details dialog.

chrome/browser/resources/options/controlled_setting.js

 // Copyright (c) 2011 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.
 
 cr.define('options', function() {
   var Preferences = options.Preferences;
 
   /**
    * A controlled setting indicator that can be placed on a setting as an
    * indicator that the value is controlled by some external entity such as
@@ skipping 80 matching lines @@
 
       // Apply text overrides.
       if (self.hasAttribute('text' + self.controlledBy))
         text = self.getAttribute('text' + self.controlledBy);
 
       // Create the DOM tree.
       var bubbleText = doc.createElement('p');
       bubbleText.className = 'controlled-setting-bubble-text';
       bubbleText.textContent = text;
 
-      var pref = self.getAttribute('pref');
-      if (self.controlledBy == 'recommended' && pref) {
+      var allowReset = self.getAttribute('allow-reset');
+      if (self.controlledBy == 'recommended' && allowReset) {
         var container = doc.createElement('div');
         var action = doc.createElement('button');
         action.classList.add('link-button');
         action.classList.add('controlled-setting-bubble-action');
         action.textContent =
             localStrings.getString('controlledSettingApplyRecommendation');
         action.addEventListener(
             'click',
             function(e) {
-              Preferences.clearPref(pref);
+              // Fire the reset event, falling back to just resetting the pref.
+              if (!cr.dispatchSimpleEvent(self, 'reset', true, true)) {
+                var pref = self.getAttribute('pref');
+                if (pref)
+                  Preferences.clearPref(pref);
+              }
             });
         container.appendChild(action);
         bubbleText.appendChild(container);
       }
 
       bubbleContainer.appendChild(bubbleText);
 
       // One-time bubble-closing event handler.
       self.closeHandler_ = this.close.bind(this);
       doc.addEventListener('click', self.closeHandler_, true);
     }
   };
 
   /**
    * The controlling entity of the setting. Can take the values "policy",
    * "extension", "recommended" or be unset.
    */
   cr.defineProperty(ControlledSettingIndicator, 'controlledBy',
                     cr.PropertyKind.ATTR,
                     ControlledSettingIndicator.prototype.close);
 
   // Export.
   return {
     ControlledSettingIndicator : ControlledSettingIndicator
   };
 });