GitLab

Update TabModelWebStateListDelegate so it doesn't need TabModel
 object as there is no need to set parentModel for the tab anymore.

Bug: 899839, 228575
Change-Id: I68ff2d4672423b36fbbb171d9f183f3506d39be5
Reviewed-on: https://chromium-review.googlesource.com/c/1320792
Commit-Queue: Mohammad Refaat <mrefaat@chromium.org>
Reviewed-by: Eugene But <eugenebut@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611406}