Remove the browser_sync flag.

chrome/browser/sync/sync_setup_flow.h

 // Copyright (c) 2006-2008 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.
 
-#if defined(BROWSER_SYNC)
-
 #ifndef CHROME_BROWSER_SYNC_SYNC_SETUP_FLOW_H_
 #define CHROME_BROWSER_SYNC_SYNC_SETUP_FLOW_H_
 
 #include <string>
 #include <vector>
 
 #include "app/l10n_util.h"
 #include "base/time.h"
 #include "chrome/browser/dom_ui/html_dialog_ui.h"
 #include "chrome/browser/sync/profile_sync_service.h"
@@ skipping 162 matching lines @@
   }
 
  private:
   void ExecuteJavascriptInIFrame(const std::wstring& iframe_xpath,
                                  const std::wstring& js);
   SyncSetupFlow* flow_;
   DISALLOW_COPY_AND_ASSIGN(FlowHandler);
 };
 
 #endif  // CHROME_BROWSER_SYNC_SYNC_SETUP_FLOW_H_
-#endif  // defined(BROWSER_SYNC)