GitLab

Do not enable extra mac nodes on the AXTree because it caused a
crash.

Bug: 1136813
Change-Id: I46ce64b3af5ec5d4bf3abb82e30bbb96b71637e5
AX-Relnotes: Fix a browser crash on Mac.
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2555559
Commit-Queue: Abigail Klein <abigailbklein@google.com>
Reviewed-by: Aaron Leventhal <aleventhal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#831999}