Disable ServiceWorker/ExtensionManagementApiTestWithBackgroundType.* tests.

High frequency of test timeouts.

BUG=1132581
TBR=dbertoni@chromium.org
NOTRY=true

Change-Id: I5e38acafe2b69fa93d8350f65fe051e5c8d833e7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2444317Reviewed-by: Greg Thompson <grt@chromium.org>
Commit-Queue: Greg Thompson <grt@chromium.org>
Cr-Commit-Position: refs/heads/master@{#813128}

chrome/browser/extensions/api/management/management_api_browsertest.cc

@@ -87,7 +87,8 @@ INSTANTIATE_TEST_SUITE_P(PersistentBackground,
                          ExtensionManagementApiTestWithBackgroundType,
                          ::testing::Values(ContextType::kPersistentBackground));
 
-INSTANTIATE_TEST_SUITE_P(ServiceWorker,
+// Disabled due to timeouts; see https://crbug.com/1132581.
+INSTANTIATE_TEST_SUITE_P(DISABLED_ServiceWorker,
                          ExtensionManagementApiTestWithBackgroundType,
                          ::testing::Values(ContextType::kServiceWorker));