GitLab

Implements a test for backward-compatibility between any two versions
of a mojom interface definition.

Bug: 1070663
Change-Id: I832d7ecaf6d8b2c778eb9f1378f183c027585d28
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2216910Reviewed-by: Oksana Zhuravlova <oksamyt@chromium.org>
Commit-Queue: Ken Rockot <rockot@google.com>
Cr-Commit-Position: refs/heads/master@{#772498}