GitLab

SetDefaultCookiePolicyToBlock() should be called before any url request. Call it
it in the early startup.

Bug: 899276
Change-Id: Idf747013cd19d057506d7e0314a2d8c64c413c29
Reviewed-on: https://chromium-review.googlesource.com/c/1301842Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Commit-Queue: Xi Han <hanxi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#603151}