Merge "libgui: Only allow one return from useFenceSync"

    // on some devices it's better to not use EGL_KHR_fence_sync

    // even if they have it

    return false;

#endif

#else

    // currently we shall only attempt to use EGL_KHR_fence_sync if

    // USE_FENCE_SYNC is set in our makefile

    return !mHasNativeFenceSync && mHasFenceSync;

#endif

}

bool SyncFeatures::useWaitSync() const {

    return (useNativeFenceSync() || useFenceSync()) && mHasWaitSync;