Sync Promo: Add a way to collapse the sync promo

chrome/browser/ui/webui/options/options_sync_setup_handler.h

Index: chrome/browser/ui/webui/options/options_sync_setup_handler.h
diff --git a/chrome/browser/ui/webui/options/options_sync_setup_handler.h b/chrome/browser/ui/webui/options/options_sync_setup_handler.h
new file mode 100644
index 0000000000000000000000000000000000000000..00e67fd230a63c3d007042fbd7383d7e40bbf5fb
--- /dev/null
+++ b/chrome/browser/ui/webui/options/options_sync_setup_handler.h
@@ -0,0 +1,17 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS_OPTIONS_SYNC_SETUP_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_OPTIONS_OPTIONS_SYNC_SETUP_HANDLER_H_
+
+#include "chrome/browser/ui/webui/sync_setup_handler.h"
+
+// The handler for Javascript messages related to sync setup UI in the options
+// page.
+class OptionsSyncSetupHandler : public SyncSetupHandler {
+ protected:
+  virtual void ShowSetupUI();
+};
+
+#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_OPTIONS_SYNC_SETUP_HANDLER_H_