The User Manager needs to use profile paths not display names for profile switching

ui/login/account_picker/user_pod_row.js

 // Copyright 2014 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 User pod row implementation.
  */
 
 cr.define('login', function() {
   /**
@@ skipping 1943 matching lines @@
     focusInput: function() {
       // Move tabIndex from the whole pod to the main input.
       this.tabIndex = -1;
       this.mainInput.tabIndex = UserPodTabOrder.POD_INPUT;
       this.mainInput.focus();
     },
 
     /** @override */
     activate: function(e) {
       if (!this.user.needsSignin) {
-        Oobe.launchUser(this.user.emailAddress, this.user.displayName);
+        Oobe.launchUser(this.user.profilePath);
       } else if (!this.passwordElement.value) {
         return false;
       } else {
         chrome.send('authenticatedLaunchUser',
-                    [this.user.emailAddress,
-                     this.user.displayName,
+                    [this.user.profilePath,
+                     this.user.emailAddress,
                      this.passwordElement.value]);
       }
       this.passwordElement.value = '';
       return true;
     },
 
     /** @override */
     handleClickOnPod_: function(e) {
       if (this.parentNode.disabled)
         return;
@@ skipping 1152 matching lines @@
        if (pod && pod.multiProfilesPolicyApplied) {
          pod.userTypeBubbleElement.classList.remove('bubble-shown');
        }
      }
   };
 
   return {
     PodRow: PodRow
   };
 });