Lock screen pin keyboard ui upgrades.

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

Index: chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.js
diff --git a/chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.js b/chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.js
index 9b9ba5dad8b5dc2ba8c528ddea38566061751d5e..8bbf90dcff9f1aeb002d24cef6845e97e8717c72 100644
--- a/chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.js
+++ b/chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.js
@@ -47,6 +47,14 @@ Polymer({
       value: false
     },
 
+    /**
+     * Whether or not to show an erro.

[jdufault, 2016/08/08 23:47:25]

nit: error

[sammiequon, 2016/08/11 01:03:07]

Done.

+     */
+    enableError: {
+      type: Boolean,
+      value: false
+    },
+
     /** The value stored in the keyboard's input element. */
     value: {
       type: String,
@@ -127,12 +135,21 @@ Polymer({
   },
 
   /**
-   * Changes the color of the submit button if PIN is ready.
+   * Changes the color of the input text if it is not empty.
    * @param {string} value
    * @private
    */
-  getSubmitClass_: function(value) {
-    return value.length > 0 ? 'ready-background' : '';
+  getContentClass_: function(value) {
+    return value.length > 0 ? 'has-content' : '';
+  },
+
+  /**
+   * Disables the submit and backspace button if nothing is entered.
+   * @param {string} value
+   * @private
+   */
+  hasInput_: function(value) {
+    return value.length > 0;
   },
 
   /**
@@ -156,6 +173,15 @@ Polymer({
   },
 
   /**
+   * Computes the value of the pin input placeholder.
+   * @param {boolean} enablePassword
+   * @private
+   */
+  getErrorClass_: function(showError) {
+    return showError ? 'error-show' : '';
+  },
+
+  /**
    * Computes the direction of the pin input.
    * @param {string} password
    * @private
@@ -178,7 +204,7 @@ Polymer({
    * @param {boolean} submitEnabled
    * @private
    */
-  getSubmitHiddenClass_: function(submitEnabled) {
+  getSubmitClass_: function(submitEnabled) {
     return submitEnabled ? '' : 'submit-button-hidden';
   }
 });