Merge "libstagefright: add default gralloc usage for detached surface" into main

    if (!mDetachedSurface) {

        uint64_t usage = 0;

        if (!mSurface || mSurface->getConsumerUsage(&usage) != OK) {

            // TODO: should we use a/the default consumer usage?

            usage = 0;

            // By default prepare buffer to be displayed on any of the common surfaces

            usage = (GRALLOC_USAGE_HW_TEXTURE | GRALLOC_USAGE_HW_COMPOSER);

        }

        mDetachedSurface.reset(new ReleaseSurface(usage));

    }