sheriff: disable HelpAppV2UsesLocalSearchServiceMethods

TBR=jrw@chromium.org

Bug: 1156713
Change-Id: I465998e7cd4cc97b496e1d3d6f5e0a15d3a7b75b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2579804Reviewed-by: Dominique Fauteux-Chapleau <domfc@chromium.org>
Commit-Queue: Dominique Fauteux-Chapleau <domfc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#834790}

chrome/browser/chromeos/web_applications/help_app_integration_browsertest.cc

@@ -357,8 +357,9 @@ IN_PROC_BROWSER_TEST_P(HelpAppIntegrationTest, HelpAppV2ShowParentalControls) {
 }
 
 // Test that the Help App delegate uses the local search service methods.
+// Flaky on CrOS, see crbug.com/1156713
 IN_PROC_BROWSER_TEST_P(HelpAppIntegrationTest,
-                       HelpAppV2UsesLocalSearchServiceMethods) {
+                       DISABLED_HelpAppV2UsesLocalSearchServiceMethods) {
   WaitForTestSystemAppInstall();
   content::WebContents* web_contents = LaunchApp(web_app::SystemAppType::HELP);