Bug 752153 - Improve the exit procedure for the Gecko Android Looper r=blassey

    public static void pumpMessageLoop() {

        // We're going to run the Looper below, but we need a way to break out, so

        // we post this Runnable that throws a RuntimeException. This causes the loop

        // we post this Runnable that throws an AssertionError. This causes the loop

        // to exit without marking the Looper as dead. The Runnable is added to the

        // end of the queue, so it will be executed after anything

        // else that has been added prior.

        // here we are.

        sGeckoHandler.post(new Runnable() {

            public void run() {

                throw new RuntimeException();

                throw new AssertionError();

            }

        });

        try {

            Looper.loop();

        } catch(Exception ex) {}

        } catch(Throwable ex) {}

    }

    static class AsyncResultHandler extends GeckoApp.FilePickerResultHandler {