GitLab

Modularize the interface and its dependencies:
- AsyncTabParams
- AsyncTabCreationParams

Change-Id: I5b785cae99907b43dc4188f1aa09c240ae3b47ff
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2305116
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: David Trainor <dtrainor@chromium.org>
Cr-Commit-Position: refs/heads/master@{#791034}