Merge "MediaCodec: make setVideoScalingMode usable for IGBP-based clients" into pi-dev

void JMediaCodec::setVideoScalingMode(int mode) {

    if (mSurfaceTextureClient != NULL) {

        // this works for components that queue to surface

        native_window_set_scaling_mode(mSurfaceTextureClient.get(), mode);

        // also signal via param for components that queue to IGBP

        sp<AMessage> msg = new AMessage;

        msg->setInt32("android._video-scaling", mode);

        (void)mCodec->setParameters(msg);

    }

}