OpenIntersitital test is marked as FLAKY.

chrome/browser/ui/webui/interstitials/interstitial_ui_browsertest.cc

Index: chrome/browser/ui/webui/interstitials/interstitial_ui_browsertest.cc
diff --git a/chrome/browser/ui/webui/interstitials/interstitial_ui_browsertest.cc b/chrome/browser/ui/webui/interstitials/interstitial_ui_browsertest.cc
index 1f06023895271cda60856ee33d25b3db712e9295..1c536b1281be443dff18e06098e4d266c965d21a 100644
--- a/chrome/browser/ui/webui/interstitials/interstitial_ui_browsertest.cc
+++ b/chrome/browser/ui/webui/interstitials/interstitial_ui_browsertest.cc
@@ -32,7 +32,7 @@ class InterstitialUITest : public InProcessBrowserTest {
   }
 };
 
-IN_PROC_BROWSER_TEST_F(InterstitialUITest, OpenInterstitial) {
+IN_PROC_BROWSER_TEST_F(InterstitialUITest, FLAKY_OpenInterstitial) {
   TestInterstitial(
       GURL("chrome://interstitials"),
       "Interstitials");