GitLab

The "AutomaticTabDiscarding" field trial has expired. Not having
to read the "AllowMultipleDiscards" param of this field trial will
simplify the TabManager refactor.

Bug: 775644
Change-Id: Idaded6bbc74c8ceb02379d5b7ddf43715b552a6e
Reviewed-on: https://chromium-review.googlesource.com/772090
Commit-Queue: François Doray <fdoray@chromium.org>
Reviewed-by: Chris Hamilton <chrisha@chromium.org>
Cr-Commit-Position: refs/heads/master@{#517502}