Fix offline gaia focus request

Fixed: 1045321
Change-Id: Ic50d44b76861b691100cd207edcf24b3d591150d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2076597
Auto-Submit: Denis Kuznetsov [CET] <antrim@chromium.org>
Commit-Queue: Roman Sorokin [CET] <rsorokin@chromium.org>
Reviewed-by: Roman Sorokin [CET] <rsorokin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#745033}

chrome/browser/resources/chromeos/login/screen_gaia_signin.js

@@ -945,10 +945,10 @@ Polymer({
     // Workaround to hide flashing scroll bar.
     this.async(function() {
       this.loadingFrameContents_ = false;
-    }.bind(this), 100);
 
-    if (!this.$['offline-gaia'].hidden)
-      this.$['offline-gaia'].focus();
+      if (!this.$['offline-gaia'].hidden)
+        this.$['offline-gaia'].focus();
+    }.bind(this), 100);
   },
 
   /**