Implement a poor man's PostAfterStartupTask() function.

chrome/browser/chrome_browser_main.h

 // Copyright (c) 2012 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_CHROME_BROWSER_MAIN_H_
 #define CHROME_BROWSER_CHROME_BROWSER_MAIN_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/field_trial.h"
@@ skipping 164 matching lines @@
   // PreMainMessageLoopRunThreadsCreated.
   PrefService* local_state_;
   base::FilePath user_data_dir_;
 
   // Members needed across shutdown methods.
   bool restart_last_session_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserMainParts);
 };
 
+namespace chrome {

[jam, 2015/03/10 23:04:34]

nit: chrome namespace isn't used anymore (see chromium-dev threads about it)
since it's a leaf node

[michaeln, 2015/03/10 23:54:54]

that's too bad, chrome::IsBrowserStartupComplete() reads nicely

+
+// May be called on any thread.
+bool IsBrowserStartupComplete();
+
+// Must be called only on the UI thread.
+void SetBrowserStartupIsComplete();
+
+}  // chrome
+
 #endif  // CHROME_BROWSER_CHROME_BROWSER_MAIN_H_