Add `@providesModule` to `IntegrationTests/WebViewTest.js`

Reviewed By: cpojer

Differential Revision: D5611573

fbshipit-source-id: 78a56524c1941a1d42fb1add5c5410c1bf8597c5

IntegrationTests/WebViewTest.js

@@ -5,6 +5,8 @@
  * 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 WebViewTest
  */
 'use strict';