GitLab

testHTTPResponseTimelineRecorder was failing due to an occasional favicon
request which would occassional cause the test to fail.  To fix the issue
it will now filter out any favicon requests before validation.

testChromeProxyMetricForBlockOnce failed to due not being updated when
the BlockOnce case was changed.  I also renamed the metrics we store in the
test to be consistent with other cases.

Last item is adding myself to OWNERS for chrome_proxy tests.

BUG=452279,449979,455269

Review URL: https://codereview.chromium.org/1550973002

Cr-Commit-Position: refs/heads/master@{#367098}