Hide Wallet checkbox when user signs out of sync.

chrome/browser/resources/options/autofill_options.js

Index: chrome/browser/resources/options/autofill_options.js
diff --git a/chrome/browser/resources/options/autofill_options.js b/chrome/browser/resources/options/autofill_options.js
index aee75d577d939e1ff3aee94e00ab9fc9362ad3b9..ce8dd1fd5d91f713524209199183d29fd700c679 100644
--- a/chrome/browser/resources/options/autofill_options.js
+++ b/chrome/browser/resources/options/autofill_options.js
@@ -89,9 +89,8 @@ cr.define('options', function() {
         return true;  // Always follow the href
       };
 
-      var enableWalletIntegration =
-          loadTimeData.getBoolean('enableAutofillWalletIntegration');
-      $('autofill-wallet-setting-area').hidden = !enableWalletIntegration;
+      this.walletIntegrationAvailableStateChanged_(
+          loadTimeData.getBoolean('autofillWalletIntegrationAvailable'));
 
       // TODO(jhawkins): What happens when Autofill is disabled whilst on the
       // Autofill options page?
@@ -229,6 +228,16 @@ cr.define('options', function() {
       AutofillEditCreditCardOverlay.loadCreditCard(creditCard);
       PageManager.showPageByName('autofillEditCreditCard');
     },
+
+    /**
+     * Toggles the visibility of the Wallet integration checkbox.
+     * @param {boolean} available Whether the user has the option of using
+     *     Wallet data.
+     * @private
+     */
+    walletIntegrationAvailableStateChanged_: function(available) {
+      $('autofill-wallet-setting-area').hidden = !available;
+    },
   };
 
   AutofillOptions.setAddressList = function(entries) {
@@ -255,6 +264,11 @@ cr.define('options', function() {
     AutofillOptions.getInstance().showEditAddressOverlay_(address);
   };
 
+  AutofillOptions.walletIntegrationAvailableStateChanged = function(available) {
+    AutofillOptions.getInstance().
+        walletIntegrationAvailableStateChanged_(available);
+  };
+
   /**
    * @param {CreditCardData} creditCard
    */