Revert of Roll third_party/custom_tabs_client (patchset #1 id:1 of https://codereview.chromium.org/
1254383014/)
Reason for revert:
speculative revert, prevents clank roll downstream, see crbug.com/515457
Original issue's description:
> Roll third_party/custom_tabs_client
>
> Roll from
6bae8bf337d5c51184c0c01f5baca3e0858 to
>
19d5cb35bece11876e8f34c17c6fdfd9bad.
>
> BUG=510083
>
> Committed: https://crrev.com/
dc731ce3111a8d4f316e478601707cc33e70e542
> Cr-Commit-Position: refs/heads/master@{#341048}
TBR=yusufo@chromium.org,ianwen@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=510083
Review URL: https://codereview.chromium.org/
1263983002
Cr-Commit-Position: refs/heads/master@{#341100}