Bug 717958 - Always read FPS pref on the main thread with OMTC. r=ajuma

    console->LogStringMessage(msg.get());

  }

  if (NS_IsMainThread()) {

    Preferences::AddBoolVarCache(&sDrawFPS, "layers.acceleration.draw-fps");

  } else {

    // We have to dispatch an event to the main thread to read the pref.

    class ReadDrawFPSPref : public nsRunnable {

    public:

      NS_IMETHOD Run()

      {

        Preferences::AddBoolVarCache(&sDrawFPS, "layers.acceleration.draw-fps");

        return NS_OK;

      }

    };

    NS_DispatchToMainThread(new ReadDrawFPSPref());

  }

  reporter.SetSuccessful();

  return true;