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This patch is the reland of https://crrev.com/6d90e3c056 on the latest tot. The previous patch was reverted due to conflict and build failure.

BUG=665719
R=yusukes@chromium.org, lhchavez@chromium.org
TBR=dcheng@chromium.org
# TBRing since no changes in IPC-related code from the previous patch

Review-Url: https://codereview.chromium.org/2556463003
Cr-Commit-Position: refs/heads/master@{#438450}