GitLab

After this CL, a single Ctrl+L will reveal the full URL.

This applies to beth Query in Omnibox and Steady State Elisions.

This CL also adds a unit test, as well as an internal-only killswitch
in case we need to remotely disable this feature.

Bug: 874592, 882348
Change-Id: I6bce176e613b46bfc9b6ce524ddf855bdb14f399
Reviewed-on: https://chromium-review.googlesource.com/c/1285511
Commit-Queue: Tommy Li <tommycli@chromium.org>
Reviewed-by: Justin Donnelly <jdonnelly@chromium.org>
Cr-Commit-Position: refs/heads/master@{#603584}