Dialog message saying PIN is incorrect positioned correctly.

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 c258be189f92761f2b8efd3a592195be78f04b0a..357ffcb20829e4c9076ebb450aee47ac0970c667 100644
--- a/ui/login/account_picker/user_pod_row.js
+++ b/ui/login/account_picker/user_pod_row.js
@@ -1174,6 +1174,9 @@ cr.define('login', function() {
      */
     get mainInput() {
       if (this.isAuthTypePassword) {
+        if (this.pinContainer.classList.contains('pin-enabled')) {
+          return this.pinKeyboard.inputElement;
+        }
         return this.passwordElement;
       } else if (this.isAuthTypeOnlineSignIn) {
         return this;
@@ -1340,11 +1343,15 @@ cr.define('login', function() {
         this.classList.toggle('signing-in', true);
         chrome.send('attemptUnlock', [this.user.username]);
       } else if (this.isAuthTypePassword) {
-        if (!this.passwordElement.value)
+        if (!this.passwordElement.value && this.pinKeyboard.inputElement &&
+            !this.pinKeyboard.inputElement.value)
           return false;
         Oobe.disableSigninUI();
-        chrome.send('authenticateUser',
-                    [this.user.username, this.passwordElement.value]);
+        // The PIN gets authenticated seperately, so we do not want it to be
+        // authenticated twice.
+        if (this.passwordElement.value)

[jdufault, 2016/07/11 18:19:54]

Add {}

Can the PIN submit handler be removed so there's only one authenticateUser call?

[sammiequon, 2016/07/11 22:16:25]

Done.

+          chrome.send('authenticateUser',
+                      [this.user.username, this.passwordElement.value]);
       } else {
         console.error('Activating user pod with invalid authentication type: ' +
             this.authType);
@@ -1803,6 +1810,9 @@ cr.define('login', function() {
           // Note that this.userClickAuthAllowed_ is set in mouse down event
           // handler.
           this.parentNode.setActivatedPod(this);
+        } else if (this.pinKeyboard.submitButton &&
+                   e.target == this.pinKeyboard.submitButton) {
+          this.parentNode.setActivatedPod(this);
         }
 
         if (this.multiProfilesPolicyApplied)
@@ -3399,6 +3409,7 @@ cr.define('login', function() {
           if (this.focusedPod_) {
             var targetTag = e.target.tagName;
             if (e.target == this.focusedPod_.passwordElement ||
+                e.target == this.focusedPod_.pinKeyboard.inputElement ||
                 (targetTag != 'INPUT' &&
                  targetTag != 'BUTTON' &&
                  targetTag != 'A')) {