Disable flaky test on ChromeOS - LearnModeHardwareKeys

Bug: 1111575
Change-Id: I502b03e8fca3e398c7ad4e8820586cd9d2054c18

TBR: dtseng@chromium.org
Change-Id: I502b03e8fca3e398c7ad4e8820586cd9d2054c18
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2330937Reviewed-by: Peter Williamson <petewil@chromium.org>
Commit-Queue: Peter Williamson <petewil@chromium.org>
Cr-Commit-Position: refs/heads/master@{#793447}

chrome/browser/chromeos/accessibility/spoken_feedback_browsertest.cc

@@ -230,7 +230,13 @@ IN_PROC_BROWSER_TEST_F(LoggedInSpokenFeedbackTest, NavigateNotificationCenter) {
 
 // Test Learn Mode by pressing a few keys in Learn Mode. Only available while
 // logged in.
-IN_PROC_BROWSER_TEST_F(LoggedInSpokenFeedbackTest, LearnModeHardwareKeys) {
+#if defined(OS_CHROMEOS)
+#define MAYBE_LearnModeHardwareKeys DISABLED_LearnModeHardwareKeys
+#else
+#define MAYBE_LearnModeHardwareKeys LearnModeHardwareKeys
+#endif
+IN_PROC_BROWSER_TEST_F(LoggedInSpokenFeedbackTest,
+                       MAYBE_LearnModeHardwareKeys) {
   EnableChromeVox();
   sm_.Call([this]() {
     extensions::browsertest_util::ExecuteScriptInBackgroundPageNoWait(