GitLab

Instead of unmapping directly, Free() returns DeferredUnmap that needs
to be run after releasing the lock.

Bug: 1067006
Change-Id: I2638d370a5b36867d73adcbaf8988c4259ff05a3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2132155Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Benoit L <lizeb@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Chris Palmer <palmer@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#755954}