Revert of Remove webrtc::Video from H264 encoder internals (patchset #2 id:20001 of https://codereview.webrtc.org/2468903003/ )

Reason for revert:
Landed the wrong patchset. Nothing broken.

Original issue's description:
> Remove webrtc::Video from H264 encoder internals
>
> This CL replaces the use of webrtc::Video as an internal
> variable in the H.264 encoder with the specific fields
> that are used by this encoder.
>
> In support of refactorings discussed around:
>
> BUG=600254
>
> Committed: https://crrev.com/2549437b5ccf5aae2e6f1a1491c5f505d1859f9c
> Cr-Commit-Position: refs/heads/master@{#14887}

TBR=magjed@webrtc.org,stefan@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=600254

Review-Url: https://codereview.webrtc.org/2472673002
Cr-Original-Commit-Position: refs/heads/master@{#14888}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 6ad7fa4606643d382ee7cf91aa90597c2af8cfa4
2 files changed