[Sheriff] Disable flaky KioskTest.LaunchAppUserCancel

Bug: 964333
Change-Id: I4388432ab6651ef64fa9fcd6b23e687069e6979c
NoTry: True
Tbr: apotapchuk@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2375934Reviewed-by: Xiaocheng Hu <xiaochengh@chromium.org>
Commit-Queue: Xiaocheng Hu <xiaochengh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#801471}

chrome/browser/chromeos/login/app_mode/kiosk_browsertest.cc

@@ -1106,7 +1106,8 @@ IN_PROC_BROWSER_TEST_F(KioskTest, LaunchAppNetworkPortal) {
   WaitForAppLaunchSuccess();
 }
 
-IN_PROC_BROWSER_TEST_F(KioskTest, LaunchAppUserCancel) {
+// TODO(crbug.com/964333): Flaky seg faults
+IN_PROC_BROWSER_TEST_F(KioskTest, DISABLED_LaunchAppUserCancel) {
   StartAppLaunchFromLoginScreen(
       NetworkPortalDetector::CAPTIVE_PORTAL_STATUS_ONLINE);
   OobeScreenWaiter splash_waiter(AppLaunchSplashScreenView::kScreenId);