Submit button does not show up on md-settings anymore.

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 54846ba3961c0d4cd01abaf0046312a21d1fa9b8..4968459aa3addb43a696271a250c72d587bbc2cb 100644
--- a/chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.js
+++ b/chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.js
@@ -39,6 +39,14 @@ Polymer({
       value: false
     },
 
+    /**
+     * Whether or not the keyboard's submit button should be shown.
+     */
+    enableSubmitButton: {
+      type: Boolean,
+      value: false
+    },
+
     /** The value stored in the keyboard's input element. */
     value: {
       type: String,
@@ -159,5 +167,13 @@ Polymer({
     // (just numbers), if the document direction is rtl.
     var enableRtl = (document.dir == 'rtl') && !Number.isInteger(+password);
     return enableRtl ? 'input-non-pin' : '';
+  },
+
+  /**
+   * Computes if the submit button is visible.
+   * @private

[jdufault, 2016/07/21 23:36:36]

Add @param doc for submitEnabled

[sammiequon, 2016/07/29 18:57:38]

Done.

+   */
+  computeSubmitHiddenClass_: function(submitEnabled) {
+    return submitEnabled ? '' : 'submit-button-hidden';
   }
 });