[Extensions] Disable the SW version of a flaky Management API test.

ManagementApiNonPersistentApiTest.UninstallViaBrowserAction is only
flaky when run using a service worker. However, the test is currently
disabled for both configurations. This CL reenables the event page
version of the test and updates the TODO with the tracking bug.

(cherry picked from commit 91c0c3d)

Bug: 1449383, 1446968
Change-Id: Idc7de4a9c08796236cb1b4de299f9a2ccd157dc0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4599023
Commit-Queue: Emilia Paz <emiliapaz@chromium.org>
Auto-Submit: David Bertoni <dbertoni@chromium.org>
Reviewed-by: Emilia Paz <emiliapaz@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1155238}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4608733
Owners-Override: Robert Liao <robliao@google.com>
Auto-Submit: Robert Liao <robliao@chromium.org>
Commit-Queue: Robert Liao <robliao@chromium.org>
Cr-Commit-Position: refs/branch-heads/5790@{#664}
Cr-Branched-From: 1d71a33-refs/heads/main@{#1148114}

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

@@ -82,8 +82,14 @@ IN_PROC_BROWSER_TEST_P(ManagementApiNonPersistentApiTest, UninstallSelf) {
 
 // Tests chrome.management.uninstall with a real user gesture
 // (i.e. browserAction.onClicked event).
-IN_PROC_BROWSER_TEST_P(ManagementApiNonPersistentApiTest,
-                       UninstallViaBrowserAction) {
+// TODO(https://crbug.com/1446968): The service worker version is flaky.
+using ManagementApiEventPageTest = ManagementApiNonPersistentApiTest;
+
+INSTANTIATE_TEST_SUITE_P(EventPage,
+                         ManagementApiEventPageTest,
+                         ::testing::Values(ContextType::kEventPage));
+
+IN_PROC_BROWSER_TEST_P(ManagementApiEventPageTest, UninstallViaBrowserAction) {
   const Extension* extension_b = LoadExtension(test_data_dir_.AppendASCII(
       "management/uninstall_via_browser_action/extension_b"));
   ASSERT_TRUE(extension_b);