GitLab

Adds a new flag, kFormatUrlOmitPath, that formats URL by omitting
everything after the hostname, like path and query.

Bug: none
Cq-Include-Trybots: master.tryserver.chromium.mac:ios-simulator-cronet;master.tryserver.chromium.mac:ios-simulator-full-configs
Change-Id: I3f98fd52a6e5fbb404fb87d72cdb4bbebe2d15b5
Reviewed-on: https://chromium-review.googlesource.com/971481
Commit-Queue: Stepan Khapugin <stkhapugin@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#550574}