Convert discardable shared memory to the new shared memory API

Bug: 826213
Change-Id: Ifa1d7e3fd3625ef0161073d594f3f48aada7b7c8
Reviewed-on: https://chromium-review.googlesource.com/1019448
Reviewed-by: David Reveman <reveman@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Commit-Queue: Alexandr Ilin <alexilin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553472}

CrOS-Libchrome-Original-Commit: ae5e45c0b984a5e6ae27c4acd82a26145970629f
6 files changed
tree: f1a4945b7589be2003c0c8e013d6d41aa7a4f169
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/