Sheriff: re-disable flaky test that got re-enabled.

It was re-enabled as part of:

Bug: 898370
Change-Id: Icd0e3ff7f4cf953e563d8182394aa7fb159911ac
Reviewed-by: Mounir Lamouri <>
Commit-Queue: Mounir Lamouri <>
Cr-Commit-Position: refs/heads/master@{#610675}
diff --git a/chrome/browser/ui/ b/chrome/browser/ui/
index 82e49c2..9d52c42 100644
--- a/chrome/browser/ui/
+++ b/chrome/browser/ui/
@@ -736,7 +736,7 @@
 // Test for  Reloading a page with a before unload handler and
 // then canceling the dialog should not leave the throbber spinning.
 // Test is flakily timing out
-IN_PROC_BROWSER_TEST_F(BrowserTest, ReloadThenCancelBeforeUnload) {
+IN_PROC_BROWSER_TEST_F(BrowserTest, DISABLED_ReloadThenCancelBeforeUnload) {
   GURL url(std::string("data:text/html,") + kBeforeUnloadHTML);
   ui_test_utils::NavigateToURL(browser(), url);
   WebContents* contents = browser()->tab_strip_model()->GetActiveWebContents();