Disable flaky NetworkServiceRestartBrowserTest.BrowserIOFactoryInfo on Windows

TBR=chongz@chromium.org

Bug: 840127
Change-Id: Idb63b21d4b1ea0c6b0eca07f6bcec0f7871dffbd
Reviewed-on: https://chromium-review.googlesource.com/1046659Reviewed-by: Guido Urdaneta <guidou@chromium.org>
Commit-Queue: Guido Urdaneta <guidou@chromium.org>
Cr-Commit-Position: refs/heads/master@{#556436}

content/browser/network_service_restart_browsertest.cc

@@ -458,7 +458,14 @@ IN_PROC_BROWSER_TEST_F(NetworkServiceRestartBrowserTest,
 // Make sure the factory info returned from
 // |StoragePartition::GetURLLoaderFactoryForBrowserProcessIOThread()| can be
 // used after crashes.
-IN_PROC_BROWSER_TEST_F(NetworkServiceRestartBrowserTest, BrowserIOFactoryInfo) {
+// Flaky on Windows. https://crbug.com/840127
+#if defined(OS_WIN)
+#define MAYBE_BrowserIOFactoryInfo DISABLED_BrowserIOFactoryInfo
+#else
+#define MAYBE_BrowserIOFactoryInfo BrowserIOFactoryInfo
+#endif
+IN_PROC_BROWSER_TEST_F(NetworkServiceRestartBrowserTest,
+                       MAYBE_BrowserIOFactoryInfo) {
   auto* partition =
       BrowserContext::GetDefaultStoragePartition(browser_context());
   auto shared_url_loader_factory_info =