Reland of Delete deprecated and transitional stuff related to video frame refactoring. (patchset #1 id:1 of https://codereview.webrtc.org/2845333002/ )

Reason for revert:
Downstream projects being updated.

For Chrome, relanding depends on cl
https://codereview.chromium.org/2855783003/

Original issue's description:
> Revert of Delete deprecated and transitional stuff related to video frame refactoring. (patchset #17 id:320001 of https://codereview.webrtc.org/2622263002/ )
>
> Reason for revert:
> Broke Chrome build, see, e.g.,
> http://build.chromium.org/p/chromium.webrtc.fyi/builders/Linux%20Builder/builds/16237
>
> Original issue's description:
> > Delete deprecated and transitional stuff related to video frame refactoring.
> >
> > BUG=webrtc:5880
> >
> > Review-Url: https://codereview.webrtc.org/2622263002
> > Cr-Commit-Position: refs/heads/master@{#17928}
> > Committed: https://chromium.googlesource.com/external/webrtc/+/713a3bbcc74a4c1a1f54d6dbd0bdaa715f5c1ae1
>
> TBR=mflodman@webrtc.org,perkj@webrtc.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=webrtc:5880
>
> Review-Url: https://codereview.webrtc.org/2845333002
> Cr-Commit-Position: refs/heads/master@{#17929}
> Committed: https://chromium.googlesource.com/external/webrtc/+/aec49d2b49e1beceb286cbb29ad220aefd0ac648

TBR=mflodman@webrtc.org,perkj@webrtc.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=webrtc:5880

Review-Url: https://codereview.webrtc.org/2852303002
Cr-Commit-Position: refs/heads/master@{#17974}
26 files changed
tree: 13095fbe4cb02357cac81c7207f1f3101139aaf5
  1. build_overrides/
  2. data/
  3. infra/
  4. resources/
  5. tools-webrtc/
  6. webrtc/
  7. .clang-format
  8. .git-blame-ignore-revs
  9. .gitignore
  10. .gn
  11. AUTHORS
  12. BUILD.gn
  13. check_root_dir.py
  14. cleanup_links.py
  15. codereview.settings
  16. DEPS
  17. LICENSE
  18. license_template.txt
  19. LICENSE_THIRD_PARTY
  20. OWNERS
  21. PATENTS
  22. PRESUBMIT.py
  23. pylintrc
  24. README.md
  25. WATCHLISTS
README.md

WebRTC is a free, open software project that provides browsers and mobile applications with Real-Time Communications (RTC) capabilities via simple APIs. The WebRTC components have been optimized to best serve this purpose.

Our mission: To enable rich, high-quality RTC applications to be developed for the browser, mobile platforms, and IoT devices, and allow them all to communicate via a common set of protocols.

The WebRTC initiative is a project supported by Google, Mozilla and Opera, amongst others.

Development

See http://www.webrtc.org/native-code/development for instructions on how to get started developing with the native code.

More info