MD Settings: Privacy: Show dialog when changing do-not-track

chrome/browser/resources/settings/privacy_page/privacy_page.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.
 
 /**
  * @fileoverview
  * 'settings-privacy-page' is the settings page containing privacy and
  * security settings.
  */
 (function() {
@@ skipping 93 matching lines @@
     this.addWebUIListener('safe-browsing-extended-reporting-change', setSber);
     this.browserProxy_.getSafeBrowsingExtendedReporting().then(setSber);
   },
 
   /** @protected */
   currentRouteChanged: function() {
     this.showClearBrowsingDataDialog_ =
         settings.getCurrentRoute() == settings.Route.CLEAR_BROWSER_DATA;
   },
 
+  /**
+   * Handles the change event for the do-not-track toggle. Shows a
+   * confirmation dialog.
+   * @param {Event} event
+   * @private
+   */
+  onDoNotTrackChange_: function(event) {
+    this.$.confirmDoNotTrackDialog.showModal();
+  },
+
+  /**
+   * Handles the shared proxy confirmation dialog 'Confirm' button.
+   * @private
+   */
+  onDoNotTrackDialogConfirm_: function() {
+    /** @type {!SettingsToggleButtonElement} */ (this.$.doNotTrack)
+        .sendPrefChange();
+    this.$.confirmDoNotTrackDialog.close();
+  },
+
+  /**
+   * Handles the shared proxy confirmation dialog 'Cancel' button or a cancel
+   * event.
+   * @private
+   */
+  onDoNotTrackDialogCancel_: function() {
+    /** @type {!SettingsToggleButtonElement} */ (this.$.doNotTrack)
+        .resetToPrefValue();
+    this.$.confirmDoNotTrackDialog.close();
+  },
+
   /** @private */
   onManageCertificatesTap_: function() {
 // <if expr="use_nss_certs">
     settings.navigateTo(settings.Route.CERTIFICATES);
 // </if>
 // <if expr="is_win or is_macosx">
     this.browserProxy_.showManageSSLCertificates();
 // </if>
   },
 
@@ skipping 117 matching lines @@
                  : this.i18n('siteSettingsBlocked');
   },
 
   /** @private */
   getProtectedContentIdentifiersLabel_: function(value) {
     return value ? this.i18n('siteSettingsProtectedContentEnableIdentifiers')
                  : this.i18n('siteSettingsBlocked');
   },
 });
 })();