Disable failing AppMenuTest#testHideMenuOnToggleOverview

Bug: 970184
Change-Id: I7e18eddffa5a99df17b329a4331c65c3254dd335

TBR=twellington@chromium.org

Change-Id: I7e18eddffa5a99df17b329a4331c65c3254dd335
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1642636
Commit-Queue: Pavel Shmakov <pshmakov@chromium.org>
Reviewed-by: Pavel Shmakov <pshmakov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#665875}

chrome/android/javatests/src/org/chromium/chrome/browser/appmenu/AppMenuTest.java

@@ -232,6 +232,7 @@ public class AppMenuTest {
     @Test
     @SmallTest
     @Feature({"Browser", "Main"})
+    @DisabledTest(message="https://crbug.com/970184")
     public void testHideMenuOnToggleOverview() throws TimeoutException, InterruptedException {
         CallbackHelper overviewModeFinishedShowingCallback = new CallbackHelper();
         OverviewModeBehavior.OverviewModeObserver overviewModeObserver =