EasyUnlock: Work around the ghost overlay from CSS animation.

BUG=404779

Review URL: https://codereview.chromium.org/487373002

Cr-Commit-Position: refs/heads/master@{#290743}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@290743 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/resources/options/easy_unlock_turn_off_overlay.js

@@ -92,6 +92,13 @@ cr.define('options', function() {
       chrome.send('easyUnlockTurnOffOverlayDismissed');
     },
 
+    /** @override */
+    handleCancel: function() {
+      // Make sure keyboard dismiss uses the word around as well.
+      // TODO(xiyuan): Remove the workaround. See http://crbug.com/405250
+      EasyUnlockTurnOffOverlay.dismiss();
+    },
+
     /**
      * Returns the button strip element.
      * @return {HTMLDivElement} The container div of action buttons.
@@ -175,7 +182,12 @@ cr.define('options', function() {
    * Closes the Easy unlock turn off overlay.
    */
   EasyUnlockTurnOffOverlay.dismiss = function() {
-    PageManager.closeOverlay();
+    // TODO(xiyuan): Remove the workaround and call closeOverly directly.
+    // See http://crbug.com/405250
+    $('easy-unlock-turn-off-spinner').hidden = true;
+    window.setTimeout(function() {
+      PageManager.closeOverlay();
+    }, 100);
   };
 
   /**