Allow use of ScopedAllowIO in browser tests
This change is based on the discussion on a chormium-dev
thread titled "ScopedAllowIO ban isn't preventing usage,
it's just annoying people" where jam@ mentioned "Excluding
test files seems like a good change to me."
TEST=tested locally by adding ScopedAllowIO to a random browser test file with and without this change
Review-Url: https://codereview.chromium.org/2911153002
Cr-Commit-Position: refs/heads/master@{#476211}
1 file changed
