1 files changed, 23 insertions, 0 deletions
diff --git a/node_modules/fbjs/lib/performance.js.flow b/node_modules/fbjs/lib/performance.js.flow
new file mode 100644
index 000000000..0e67e7aea
--- /dev/null
+++ b/node_modules/fbjs/lib/performance.js.flow
@@ -0,0 +1,23 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule performance
+ * @typechecks
+ */
+
+'use strict';
+
+var ExecutionEnvironment = require('./ExecutionEnvironment');
+
+var performance;
+
+if (ExecutionEnvironment.canUseDOM) {
+  performance = window.performance || window.msPerformance || window.webkitPerformance;
+}
+
+module.exports = performance || {};
+\ No newline at end of file