Submit button added to user pod.

ui/login/account_picker/screen_account_picker.js

Index: ui/login/account_picker/screen_account_picker.js
diff --git a/ui/login/account_picker/screen_account_picker.js b/ui/login/account_picker/screen_account_picker.js
index b2952eb505d86c57404cfdbc71a1da3564469b7b..6d4b8d5cd2a20d37355537476b02c5b7cf19efe9 100644
--- a/ui/login/account_picker/screen_account_picker.js
+++ b/ui/login/account_picker/screen_account_picker.js
@@ -177,6 +177,8 @@ login.createScreen('AccountPickerScreen', 'account-picker', function() {
           chrome.send('firstIncorrectPasswordAttempt',
               [activatedPod.user.emailAddress]);
         }
+        // Update the pod row display if incorrect password.
+        $('pod-row').setFocusedPodErrorDisplay(true);
         // We want bubble's arrow to point to the first letter of input.
         /** @const */ var BUBBLE_OFFSET = 7;
         /** @const */ var BUBBLE_PADDING = 4;