Merge "Change which backdoor the tests goes through"

        // a message that calls it instead of calling it directly.

        Looper.loop();

        // Once #quit() has been called, the message queue has an "mQuiting" field that prevents

        // any subsequent post in this queue. However the queue itself is still fully functional!

        // If we have a way of resetting "queue.mQuiting" then we can continue using it as normal,

        // coming back to this method to run the messages.

        // Once #quit() has been called, the looper is not functional any more (it used to be,

        // but now it SIGSEGV's if it's used again).

        // It won't accept creating a new looper for this thread and switching to it...

        // ...unless we can trick it into throwing out the old looper and believing it hasn't

        // been initialized before.

        MessageQueue queue = Looper.myQueue();

        try {

            // However there is no way of doing it externally, and mQuiting is private.

            // However there is no way of doing it externally, and the static ThreadLocal

            // field into which it's stored is private.

            // So... get out the big guns.

            java.lang.reflect.Field f = MessageQueue.class.getDeclaredField("mQuiting");

            f.setAccessible(true); // What do you mean "private"?

            f.setBoolean(queue, false);

            java.lang.reflect.Field f = Looper.class.getDeclaredField("sThreadLocal");

            f.setAccessible(true); // private lolwut

            final ThreadLocal<Looper> a = (ThreadLocal<Looper>) f.get(looper);

            a.set(null);

            looper.prepare();

        } catch (NoSuchFieldException e) {

            throw new RuntimeException(e);

        } catch (IllegalAccessException e) {