Netzenbot
3166cecfc0
The test uses multiple navigations to set cookies then checks UseCounter histogram counts. Late-arriving cookie access events from earlier navigations cause double-counted UseCounter features (expected 1, got 2). Brave's Ephemeral Storage cookie handling modifications make the timing more sensitive than upstream. Stable upstream (0.2% flake rate / 30d per LUCI Analysis). Upstream deflake CL chromium-review.googlesource.com/c/chromium/src/+/7694592 redesigns the test to set cookies programmatically and use iframes, but landed after the Chromium 148 branch cut. Will be picked up in a future Chromium roll. Resolves https://github.com/brave/brave-browser/issues/55224