Dialog message saying PIN is incorrect positioned correctly.

chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.js

 // Copyright 2016 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
  * 'pin-keyboard' is a keyboard that can be used to enter PINs or more generally
  * numeric values.
  *
  * Properties:
@@ skipping 17 matching lines @@
   properties: {
     /** The value stored in the keyboard's input element. */
     value: {
       type: String,
       notify: true,
       value: '',
       observer: 'onPinValueChange_'
     }
   },
 
+  /**
+   * Gets the container holding the password field.
+   * @type {!HTMLInputElement}
+   */
+  get inputElement() {
+    return this.$$('#pin-input');
+  },
+
+  /**
+   * Gets the submit button.
+   * @type {!HTMLElement}
+   */
+  get submitButton() {
+    return this.$$('.submit-button');
+  },
+
   /** Transfers focus to the input element. */
   focus: function() {
     this.$$('#pin-input').focus();
   },
 
   /** Called when a keypad number has been tapped. */
   onNumberTap_: function(event, detail) {
     var numberValue = event.target.getAttribute('value');
     this.value += numberValue;
   },
@@ skipping 39 matching lines @@
   },
 
   /**
    * Changes the color of the submit button if PIN is ready.
    * @param {string} value
    */
   computeSubmitClass_: function(value) {
     return value.length > 0 ? 'ready-background' : '';
   }
 });