Revert of Remove deprecated CodecType methods. (patchset #1 id:1 of https://codereview.webrtc.org/3009583002/ )

Reason for revert:
It breaks chromium FYI bots.

E.g.: https://build.chromium.org/p/chromium.webrtc.fyi/builders/Win%20Builder/builds/11615

Original issue's description:
> Remove deprecated CodecType methods.
>
> These are no longer needed as all clients have been updated to use the
> new methods that always return a value.
>
> BUG=None
>
> Review-Url: https://codereview.webrtc.org/3009583002
> Cr-Commit-Position: refs/heads/master@{#19559}
> Committed: https://chromium.googlesource.com/external/webrtc/+/1a92d0de49779567241e97e50cb69d51257adcce

TBR=magjed@webrtc.org,tommi@webrtc.org,kthelgason@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=None

Review-Url: https://codereview.webrtc.org/3010553002
Cr-Commit-Position: refs/heads/master@{#19563}
2 files changed
tree: 67688bc2f906043b02aef2119140af98c39d738f
  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. CODE_OF_CONDUCT.md
  14. codereview.settings
  15. DEPS
  16. LICENSE
  17. license_template.txt
  18. LICENSE_THIRD_PARTY
  19. OWNERS
  20. PATENTS
  21. PRESUBMIT.py
  22. pylintrc
  23. README.md
  24. 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