GitLab

This is preliminary work for reading data pipes in RequestPeer
implementations.

Bug: 894819
Change-Id: I93ce399fa83796ab6fd095ea7dbf4666fb1458d4
Reviewed-on: https://chromium-review.googlesource.com/c/1312184Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Commit-Queue: Yutaka Hirano <yhirano@chromium.org>
Cr-Commit-Position: refs/heads/master@{#607184}