[Sheriff] Disable flaky test (correcting os)

TBR=rdevlin.cronin@chromium.org

Bug: 1101043
Change-Id: I512aa9fa95480212fba8d6e291316b65b8651643
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2277082
Commit-Queue: Parastoo Geranmayeh <parastoog@google.com>
Commit-Queue: Devlin <rdevlin.cronin@chromium.org>
Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Reviewed-by: Parastoo Geranmayeh <parastoog@google.com>
Auto-Submit: Parastoo Geranmayeh <parastoog@google.com>
Cr-Commit-Position: refs/heads/master@{#784196}

chrome/browser/extensions/api/permissions/permissions_apitest.cc

@@ -86,7 +86,7 @@ IN_PROC_BROWSER_TEST_F(PermissionsApiTest, MAYBE_FaviconPermission) {
 // Test functions and APIs that are always allowed (even if you ask for no
 // permissions).
 // Flaky on MacOS and Linux (see crbug/1064929, crbug/1101043).
-#if (defined(OS_MACOSX) || defined(OS_LINUX))
+#if (defined(OS_MACOSX) || defined(OS_CHROMEOS))
 #define MAYBE_AlwaysAllowed DISABLED_AlwaysAllowed
 #else
 #define MAYBE_AlwaysAllowed AlwaysAllowed