MD Settings: change how tap is handled on custom toggle rows

chrome/browser/resources/settings/controls/settings_boolean_control_behavior.js

 // Copyright 2016 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.
 
 /**
  * @fileoverview
  * A behavior to help controls that handle a boolean preference, such as
  * checkbox and toggle button.
  */
 
@@ skipping 43 matching lines @@
     subLabel: {
       type: String,
       value: '',
     },
   },
 
   observers: [
     'prefValueChanged_(pref.value)',
   ],
 
+  notifyChangedByUserInteraction: function() {
+    this.fire('settings-boolean-control-change');
+  },
+
   /** Reset the checked state to match the current pref value. */
   resetToPrefValue: function() {
     this.checked = this.getNewValue_(this.pref.value);
   },
 
   /** Update the pref to the current |checked| value. */
   sendPrefChange: function() {
     /** @type {boolean} */ var newValue = this.getNewValue_(this.checked);
     // Ensure that newValue is the correct type for the pref type, either
     // a boolean or a number.
@@ skipping 40 matching lines @@
     return this.disabled || this.isPrefPolicyControlled(assert(this.pref));
   },
 };
 
 /** @polymerBehavior */
 var SettingsBooleanControlBehavior = [
   CrPolicyPrefBehavior,
   PrefControlBehavior,
   SettingsBooleanControlBehaviorImpl,
 ];