Deprecate VCMPacketizationCallback::SendData and use EncodedImageCallback instead.
EncodedImageCallback is used by all encoder implementations and seems to be what we should try to use in the transport.
EncodedImageCallback can of course be cleaned up in the future.

This moves creation of RTPVideoHeader from the GenericEncoder to the PayLoadRouter.

BUG=webrtc::5687

Review URL: https://codereview.webrtc.org/1897233002

Cr-Original-Commit-Position: refs/heads/master@{#12436}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: f5d55aaecdc39e9cc66eb6e87614f04afe28f6eb
23 files changed