Respect VP8.automaticResizeOn for MediaCodec.
Respect VP8.automaticResizeOn for MediaCodec.

Disables QualityScaler for screenshare-type content and simulcast inside
MediaCodecVideoEncoder.

BUG=
R=glaznev@webrtc.org

Review URL: https://codereview.webrtc.org/2107233003 .

Cr-Original-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#13347}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: c5ad0c81c78d6286d8fd6ac14246e444dc68bf8a

Alkalyne/webrtctrunk,Alkalyne/webrtctrunk,Alkalyne/webrtctrunk,Alkalyne/webrtctrunk,Alkalyne/webrtctrunk,Alkalyne/webrtctrunk,Alkalyne/webrtctrunk,Alkalyne/webrtctrunk