Disable TrayAccessibilityTest.ShowMenuWithShowMenuOption on ChromeOS.

As tests are failing on linux-chromeos-dbg

TBR=yoshiki@chromium.org

Change-Id: I4bf298ed79ff4fb20174d493594e61e55c94dfa4
BUG: 1027919
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1932657Reviewed-by: Tim Schumann <tschumann@chromium.org>
Commit-Queue: Tim Schumann <tschumann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#718457}

chrome/browser/chromeos/system/tray_accessibility_browsertest.cc

@@ -320,7 +320,13 @@ IN_PROC_BROWSER_TEST_P(TrayAccessibilityTest, ShowMenu) {
   EXPECT_FALSE(IsMenuButtonVisible());
 }
 
-IN_PROC_BROWSER_TEST_P(TrayAccessibilityTest, ShowMenuWithShowMenuOption) {
+// Fails on linux-chromeos-dbg see crbug/1027919.
+#if defined(OS_CHROMEOS)
+#define MAYBE_ShowMenuWithShowMenuOption DISABLED_ShowMenuWithShowMenuOption
+#else
+#define MAYBE_ShowMenuWithShowMenuOption ShowMenuWithShowMenuOption
+#endif
+IN_PROC_BROWSER_TEST_P(TrayAccessibilityTest, MAYBE_ShowMenuWithShowMenuOption) {
   SetShowAccessibilityOptionsInSystemTrayMenu(true);
 
   // Confirms that the menu is visible.