Disable CursorUpdateReceivedFromCrossSiteIframe on Windows

The HiDPI version of the test is flaky on windows bots as well.

TBR: kenrb@chromium.org
Bug: 896609, 882458
Change-Id: Ifc8fdb8f33ce319398566b22737fcfe7f8f3d972
Reviewed-on: https://chromium-review.googlesource.com/c/1288532
Commit-Queue: Christian Dullweber <dullweber@chromium.org>
Reviewed-by: Christian Dullweber <dullweber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600714}

content/browser/site_per_process_hit_test_browsertest.cc

@@ -3209,7 +3209,7 @@ IN_PROC_BROWSER_TEST_P(SitePerProcessHitTestBrowserTest,
 }
 
 IN_PROC_BROWSER_TEST_P(SitePerProcessHighDPIHitTestBrowserTest,
-                       CursorUpdateReceivedFromCrossSiteIframe) {
+                       MAYBE_CursorUpdateReceivedFromCrossSiteIframe) {
   CursorUpdateReceivedFromCrossSiteIframeHelper(shell(),
                                                 embedded_test_server());
 }