Disable flaky test PopupTrackerBrowserTest.PopupNoRedirect_RedirectCountZero

Bug: 1146598
Change-Id: I9db61697c36d139e6e60d8f94eba3b5806c43803
Tbr: csharrison@chromium.org
NoTry: True
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2522197Reviewed-by: Xiaocheng Hu <xiaochengh@chromium.org>
Commit-Queue: Xiaocheng Hu <xiaochengh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#825089}

chrome/browser/ui/blocked_content/popup_tracker_browsertest.cc

@@ -572,8 +572,14 @@ IN_PROC_BROWSER_TEST_F(PopupTrackerBrowserTest, PopupInWindow_IsWindowTrue) {
       static_cast<int>(WindowOpenDisposition::NEW_POPUP));
 }
 
+// TODO(crbug.com/1146598): Test is flaky on Lacros.
+#if BUILDFLAG(IS_LACROS)
+#define MAYBE_PopupNoRedirect_RedirectCountZero DISABLED_PopupNoRedirect_RedirectCountZero
+#else
+#define MAYBE_PopupNoRedirect_RedirectCountZero PopupNoRedirect_RedirectCountZero
+#endif
 IN_PROC_BROWSER_TEST_F(PopupTrackerBrowserTest,
-                       PopupNoRedirect_RedirectCountZero) {
+                       MAYBE_PopupNoRedirect_RedirectCountZero) {
   const GURL first_url = embedded_test_server()->GetURL("/title1.html");
   ui_test_utils::NavigateToURL(browser(), first_url);