Disable flaky UtilityProcessHostBrowserTest.LaunchProcessAndCrash on Windows

content_browsertests UtilityProcessHostBrowserTest.LaunchProcessAndCrash is
flaky on Windows. Disabling the test so that it doesn't cause build bots to
be red on non-breaking changes.

Bug: 879555
Change-Id: If2aff8e69d240adf09173b82472db6c86eb6aa91
Reviewed-on: https://chromium-review.googlesource.com/1227303Reviewed-by: Will Harris <wfh@chromium.org>
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Commit-Queue: Reid Kleckner <rnk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#592216}

content/browser/utility_process_host_browsertest.cc

@@ -160,7 +160,14 @@ IN_PROC_BROWSER_TEST_F(UtilityProcessHostBrowserTest, LaunchProcess) {
   RunUtilityProcess(false, false);
 }
 
-IN_PROC_BROWSER_TEST_F(UtilityProcessHostBrowserTest, LaunchProcessAndCrash) {
+// Flaky on Windows, crbug.com/879555
+#if defined(OS_WIN)
+#define MAYBE_LaunchProcessAndCrash DISABLED_LaunchProcessAndCrash
+#else
+#define MAYBE_LaunchProcessAndCrash LaunchProcessAndCrash
+#endif
+IN_PROC_BROWSER_TEST_F(UtilityProcessHostBrowserTest,
+                       MAYBE_LaunchProcessAndCrash) {
   RunUtilityProcess(false, true);
 }