7a5a777c is going to be reverted and compaction depends on it.

BUG=chromium:694255
TBR=ulan@chromium.org,mlippautz@chromium.org

No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Change-Id: I975ea597860dd63e543b69bdc787c6667b015567
Reviewed-on: https://chromium-review.googlesource.com/595993
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47053}