[Sheriff] MenuRunnerCocoaTest:RunMenuTwice is flaky.

Flaky on Mac 10.11, 10.12, 10.14

TBR=ellyjones@chromium.org

Bug: 1060063
Change-Id: I79f7ef374d582b8c585a663ed71cc99a1530db9d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2094487Reviewed-by: Jeevan Shikaram <jshikaram@chromium.org>
Commit-Queue: Jeevan Shikaram <jshikaram@chromium.org>
Cr-Commit-Position: refs/heads/master@{#748537}

ui/views/controls/menu/menu_runner_cocoa_unittest.mm

@@ -356,7 +356,8 @@ TEST_P(MenuRunnerCocoaTest, DestroyAfterCanceling) {
   }
 }
 
-TEST_P(MenuRunnerCocoaTest, RunMenuTwice) {
+// Marking as disabled as test is flaky. crbug.com/1060063
+TEST_P(MenuRunnerCocoaTest, DISABLED_RunMenuTwice) {
   for (int i = 0; i < 2; ++i) {
     RunMenu(base::BindOnce(&MenuRunnerCocoaTest::MenuCancelCallback,
                            base::Unretained(this)));