Disable WebUIBrowserExpectFailTest.TestFailsAsyncFast on Windows

This test was previously disabled under some circumstances, but is also
failing on the Win7 Tests (dbg)(1) bot (see
https://ci.chromium.org/p/chromium/builders/ci/Win7%20Tests%20%28dbg%29%281%29)

Failing builds:
https://ci.chromium.org/p/chromium/builders/ci/Win7%20Tests%20%28dbg%29%281%29/81051
https://ci.chromium.org/p/chromium/builders/ci/Win7%20Tests%20%28dbg%29%281%29/81064
https://ci.chromium.org/p/chromium/builders/ci/Win7%20Tests%20%28dbg%29%281%29/81067
https://ci.chromium.org/p/chromium/builders/ci/Win7%20Tests%20%28dbg%29%281%29/81069

Bug: 1039406
Change-Id: I1eb6e1733bc88d21acf377db50c679f6e3306194
TBR: jrummell@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1988229Reviewed-by: Ian Clelland <iclelland@chromium.org>
Commit-Queue: Ian Clelland <iclelland@chromium.org>
Cr-Commit-Position: refs/heads/master@{#728641}

chrome/test/base/web_ui_browser_test_browsertest.cc

@@ -92,7 +92,8 @@ IN_PROC_BROWSER_TEST_F(WebUIBrowserExpectFailTest,
 }
 
 // Test times out in debug builds: https://crbug.com/902310
-#ifndef NDEBUG
+// Test also times out in Win7 Tests: https://crbug.com/1039406
+#if defined(OS_WIN) || !defined(NDEBUG)
 #define MAYBE_TestFailsAsyncFast DISABLED_TestFailsAsyncFast
 #else
 #define MAYBE_TestFailsAsyncFast TestFailsAsyncFast