tree 2a86914c40b4a390e3c62e562f61139646355265
parent 0656f332dee1a4c44b05ab7ef56ebd6d21927bf6
author Urvang Joshi <urvang@google.com> 1532042794 -0700
committer Urvang Joshi <urvang@google.com> 1532384408 -0700

Move film_grain_params_present to SequenceHeader.

Cherry-picked from aom/master:
https://aomedia.googlesource.com/aom/+/8d5a4ba1422cc8835f5d0e81af397deb93c759a2

This matches the spec, and enforces that it's value doesn't change
across multiple sequence headers in the same video.

BUG=aomedia:1875

Change-Id: Ic84da452d8a2ec72891ea0eb582c648ac8cb7d04