Updates the UI and reenables the fix introduced in commit 256939

chrome/browser/resources/options/browser_options.js

Index: chrome/browser/resources/options/browser_options.js
diff --git a/chrome/browser/resources/options/browser_options.js b/chrome/browser/resources/options/browser_options.js
index e866210e1a5d2ed5091f7e3d93f5aa4173a62727..074beddac5dd447b6da37de3618e21a3a2935c83 100644
--- a/chrome/browser/resources/options/browser_options.js
+++ b/chrome/browser/resources/options/browser_options.js
@@ -846,8 +846,7 @@ cr.define('options', function() {
       // Disable the "sign in" button if we're currently signing in, or if we're
       // already signed in and signout is not allowed.
       var signInButton = $('start-stop-sync');
-      signInButton.disabled = syncData.setupInProgress ||
-                              !syncData.signoutAllowed;
+      signInButton.disabled = syncData.setupInProgress;
       this.signoutAllowed_ = syncData.signoutAllowed;
       if (!syncData.signoutAllowed)
         $('start-stop-sync-indicator').setAttribute('controlled-by', 'policy');