Merge "Fix bug with accelerated translucent rendering"

void OpenGLRenderer::composeLayerRegion(Layer* layer, const Rect& rect) {

#if RENDER_LAYERS_AS_REGIONS

    if (layer->region.isRect()) {

        const android::Rect& bounds = layer->region.getBounds();

        layer->regionRect.set(bounds.leftTop().x, bounds.leftTop().y,

                bounds.rightBottom().x, bounds.rightBottom().y);

        composeLayerRect(layer, layer->regionRect);

        layer->region.clear();

        return;