Fix clicks on Public Session login page after OOBE

ui/login/account_picker/user_pod_row.js

Index: ui/login/account_picker/user_pod_row.js
diff --git a/ui/login/account_picker/user_pod_row.js b/ui/login/account_picker/user_pod_row.js
index a65254b35c75fd0c87805324cd953cb9bc53a187..c768f23b65b8f463062696aa727eca776b3228ae 100644
--- a/ui/login/account_picker/user_pod_row.js
+++ b/ui/login/account_picker/user_pod_row.js
@@ -771,7 +771,8 @@ cr.define('login', function() {
       this.userClickAuthAllowed_ = false;
 
       // Lazy load the assets needed for the polymer submit button.
-      if (cr.isChromeOS && !cr.ui.login.ResourceLoader.alreadyLoadedAssets(
+      if (cr.isChromeOS && this.submitButton &&
+          !cr.ui.login.ResourceLoader.alreadyLoadedAssets(

[Greg Levin, 2016/09/22 20:31:39]

I assume this condition makes sense, and that this code block is unneeded if
we're not displaying the Submit button...?

[jdufault, 2016/09/22 20:52:20]

Discussed a bit offline. We should probably just add a check to only load the
resource if the display type[1] is set to LOCK.

1: https://cs.chromium.org/chromium/src/ui/login/display_manager.js?l=84

               'custom-elements-user-pod')) {
         cr.ui.login.ResourceLoader.registerAssets({
             id: 'custom-elements-user-pod',
@@ -895,7 +896,8 @@ cr.define('login', function() {
      * @type {!HTMLInputElement}
      */
     get submitButton() {
-      return this.querySelector('.submit-button');
+      return this.user_.publicAccount ? null :
+                                        this.querySelector('.submit-button');

[Greg Levin, 2016/09/22 20:31:39]

Public Session pods don't have Submit buttons.  Is it okay to skip all the "if
(this.submitButton)" code in that case?

     },
 
     /**