Move tools/mb -> tools-webrtc/mb

In addition to moving tools/mb -> tools-webrtc/mb, also
move webrtc/build/mb_config.pyl into tools-webrtc/mb
to match the default location better.
Remove Chromium-specific check for 'mb validate' that failed
due to doing this (we never cleaned that when we forked the code).

BUG=webrtc:5006
TBR=ehmaldonado@webrtc.org
NOTRY=True
TESTED=Manually ran:
tools-webrtc/mb/mb.py gen -m client.webrtc -b 'iOS64 Release' --config-file tools-webrtc/mb/mb_config.pyl  //out/Release-iphoneos
tools-webrtc/mb/mb.py gen -m client.webrtc -b 'Mac64 Release' --config-file tools-webrtc/mb/mb_config.pyl  //out/Release-mac

Review-Url: https://codereview.webrtc.org/2585743002 .
Cr-Commit-Position: refs/heads/master@{#15664}
13 files changed
tree: 7833328134ee6dba977b106cb2fb21996ffb0f3d
  1. build_overrides/
  2. chromium/
  3. data/
  4. infra/
  5. resources/
  6. third_party/
  7. tools/
  8. tools-webrtc/
  9. webrtc/
  10. .clang-format
  11. .git-blame-ignore-revs
  12. .gitignore
  13. .gn
  14. AUTHORS
  15. BUILD.gn
  16. check_root_dir.py
  17. codereview.settings
  18. DEPS
  19. LICENSE
  20. license_template.txt
  21. LICENSE_THIRD_PARTY
  22. OWNERS
  23. PATENTS
  24. PRESUBMIT.py
  25. pylintrc
  26. README.md
  27. setup_links.py
  28. sync_chromium.py
  29. 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. This page is maintained by the Google Chrome team.

Development

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

More info