Reland: Settings People: Add /signOut route for Disconnect dialog.

chrome/browser/resources/settings/people_page/people_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-people-page' is the settings page containing sign-in settings.
  */
 Polymer({
   is: 'settings-people-page',
 
   behaviors: [
+    settings.RouteObserverBehavior,
     I18nBehavior,
     WebUIListenerBehavior,
 <if expr="chromeos">
     LockStateBehavior,
 </if>
   ],
 
   properties: {
     /**
      * Preferences state.
@@ skipping 109 matching lines @@
     if (this.easyUnlockAllowed_) {
       this.addWebUIListener(
           'easy-unlock-enabled-status',
           this.handleEasyUnlockEnabledStatusChanged_.bind(this));
       this.easyUnlockBrowserProxy_.getEnabledStatus().then(
           this.handleEasyUnlockEnabledStatusChanged_.bind(this));
     }
 </if>
   },
 
+  /** @protected */
+  currentRouteChanged: function() {
+    if (settings.getCurrentRoute() == settings.Route.SIGN_OUT)
+      this.$.disconnectDialog.showModal();
+    else if (this.$.disconnectDialog.open)
+      this.$.disconnectDialog.close();
+  },
+
 <if expr="chromeos">
   /** @private */
   getPasswordState_: function(hasPin, enableScreenLock) {
     if (!enableScreenLock)
       return this.i18n('lockScreenNone');
     if (hasPin)
       return this.i18n('lockScreenPinOrPassword');
     return this.i18n('lockScreenPasswordOnly');
   },
 </if>
@@ skipping 57 matching lines @@
   onActivityControlsTap_: function() {
     this.syncBrowserProxy_.openActivityControlsUrl();
   },
 
   /** @private */
   onSigninTap_: function() {
     this.syncBrowserProxy_.startSignIn();
   },
 
   /** @private */
+  onDisconnectClosed_: function() {
+    if (settings.getCurrentRoute() == settings.Route.SIGN_OUT)
+      settings.navigateToPreviousRoute();
+  },
+
+  /** @private */
   onDisconnectTap_: function() {
-    this.$.disconnectDialog.showModal();
+    settings.navigateTo(settings.Route.SIGN_OUT);
   },
 
   /** @private */
   onDisconnectCancel_: function() {
     this.$.disconnectDialog.close();
   },
 
   /** @private */
   onDisconnectConfirm_: function() {
     var deleteProfile = !!this.syncStatus.domain ||
@@ skipping 103 matching lines @@
 
   /**
    * @param {string} iconUrl
    * @return {string} A CSS imageset for multiple scale factors.
    * @private
    */
   getIconImageset_: function(iconUrl) {
     return cr.icon.getProfileAvatarIcon(iconUrl);
   },
 });