[Sheriff] Disable TestDOMWarnings on Windows

TBR=dgozman

Bug: 1087320
Change-Id: I15cd33b9338255ea339eca35d49a5d7c694158cb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2219501Reviewed-by: Jan Wilken Dörrie <jdoerrie@chromium.org>
Commit-Queue: Jan Wilken Dörrie <jdoerrie@chromium.org>
Cr-Commit-Position: refs/heads/master@{#772626}

chrome/browser/devtools/devtools_sanity_browsertest.cc

@@ -1627,7 +1627,13 @@ IN_PROC_BROWSER_TEST_F(DevToolsSanityTest, TestNetworkPushTime) {
   CloseDevToolsWindow();
 }
 
-IN_PROC_BROWSER_TEST_F(DevToolsSanityTest, TestDOMWarnings) {
+#if defined(OS_WIN)
+// Flaky on Windows: https://crbug.com/1087320
+#define MAYBE_TestDOMWarnings DISABLED_TestDOMWarnings
+#else
+#define MAYBE_TestDOMWarnings TestDOMWarnings
+#endif
+IN_PROC_BROWSER_TEST_F(DevToolsSanityTest, MAYBE_TestDOMWarnings) {
   RunTest("testDOMWarnings", kDOMWarningsTestPage);
 }