GitLab

MediaError will take advantage of this change, (which will help explain
the separation of media_serializers_base.h). In the followup CL.

Change-Id: I0048b1d8e8670e62f895d4519bc81ddb6aaf18f2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1979354
Commit-Queue: Ted Meyer <tmathmeyer@chromium.org>
Reviewed-by: Frank Liberato <liberato@chromium.org>
Cr-Commit-Position: refs/heads/master@{#727281}