Merge "Enable context virtualization only for GL"

            // NOTE: This is only valid if the backend is OpenGL

            attrs.push_back(EGL_PLATFORM_ANGLE_EGL_HANDLE_ANGLE);

            attrs.push_back(vendorEGL);

            // Context virtualization is only available on GL back-end.

            // Needed to support threading with GL back-end

            attrs.push_back(EGL_PLATFORM_ANGLE_CONTEXT_VIRTUALIZATION_ANGLE);

            attrs.push_back(EGL_FALSE);

            break;

        default:

            ALOGV("%s: Requesting Unknown (%d) ANGLE back-end", __FUNCTION__, cnx->angleBackend);

            ALOGE("%s: Requesting Unknown (%d) ANGLE back-end", __FUNCTION__, cnx->angleBackend);

            break;

    }

    attrs.push_back(EGL_PLATFORM_ANGLE_CONTEXT_VIRTUALIZATION_ANGLE);

    attrs.push_back(EGL_FALSE);

    return true;

}