Merge "Crop touchable region to surface bounds when updating an InputChannel" into tm-qpr-dev

        h.ownerPid = callingPid;

        if (region == null) {

            h.replaceTouchableRegionWithCrop = true;

            h.replaceTouchableRegionWithCrop(null);

        } else {

            h.touchableRegion.set(region);

            h.replaceTouchableRegionWithCrop = false;

            h.setTouchableRegionCrop(surface);

        }

        h.setTouchableRegionCrop(null /* use the input surface's bounds */);

        final SurfaceControl.Transaction t = mTransactionFactory.get();

        t.setInputWindowInfo(surface, h);