[sheriff] Disable AutoplayAllowedGlobalAndURL

The test is flaky.

TBR=atwilson@chromium.org
Bug: 1167239

Change-Id: I44c744fb99848edb28f63821e899b93e2993e41d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2633093Reviewed-by: Fabrice de Gans-Riberi <fdegans@chromium.org>
Reviewed-by: Yi Gu <yigu@chromium.org>
Commit-Queue: Fabrice de Gans-Riberi <fdegans@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844168}

chrome/browser/policy/autoplay_policy_browsertest.cc

@@ -224,7 +224,9 @@ IN_PROC_BROWSER_TEST_F(AutoplayPolicyTest, AutoplayDeniedAllowedWithURL) {
   EXPECT_TRUE(TryAutoplay(GetChildFrame()));
 }
 
-IN_PROC_BROWSER_TEST_F(AutoplayPolicyTest, AutoplayAllowedGlobalAndURL) {
+// TODO(crbug.com/1167239): Flaky test.
+IN_PROC_BROWSER_TEST_F(AutoplayPolicyTest,
+                       DISABLED_AutoplayAllowedGlobalAndURL) {
   NavigateToTestPage();
 
   // Check that autoplay was not allowed.