Netzenbot
9bbc220314
The test captures a const reference to a ServiceWorkerRunningInfo map entry, stops the service worker (which removes the entry), then reads from the dangling reference in OnStoppedSync(). MSan catches this as use-of-uninitialized-value. Same root cause as the sibling test already filtered (issue #54959). Upstream Chromium test, stable upstream (0.3% flake rate, LUCI Analysis 30-day lookback). No Brave modifications in the test area. Resolves https://github.com/brave/brave-browser/issues/55396