GitLab

DiscardableSharedMemory::Purge() attempts to proactively discard pages
to prevent slow-to-respond clients from keeping the pages live longer.

If the instance is in-process then these kernel calls are unnecessary
since the memory is about to be unmapped anyway.

Bug: 1023693
Change-Id: I2bc19eb64f3fdc009c5bf8c4ed6369b2b5081045
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1911487
Auto-Submit: Wez <wez@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Commit-Queue: Wez <wez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#714684}