In all copyright messages (and in the Xcode project organization name) standardize on "The Flutter Authors", adding "The Chromium Authors" to the Flutter AUTHORS list. This reduces inconsistency in the copyright lines in this repository, moving closer to a single consistent copyright+license (as in flutter/engine and flutter/flutter)
Updates the validation script to no longer accept "The Chromium Authors" or "the Chromium project authors" in first-party code.
Adds a new CI check that all code files have a copyright+license block (and that it's one we are expecting to see).
Fixes the ~350 files (!) that did not have them. This includes all of the files in the .../example/ directories, following the example of flutter/flutter. (This does mean some manual intervention will be needed when generating new example directories in the future, but it's one-time per example.)
Also standardized some variants that used different line breaks than most of the rest of the repo (likely added since I standardized them all a while ago, but didn't add a check for at the time to enforce going forward), to simplify the checks.
Fixesflutter/flutter#77114
Includes cleanup to simplify our setup. Major changes:
- Eliminate the NNBD plugin filtering for stable.
- Remove the temporarily-added beta branch testing.
- Enable Linux, macOS, and web on stable (Windows is LUCI-based)
- Combine the two different macOS matrix configurations now that they
are the same.
- Combine the two different Linux matrix configurations by using a single
Dockerfile (which now also includes clang-format)
- The web integration smoke test temporarily still uses the old Dockerfile,
now renamed, because the driver installer script doesn't support
Chrome 89 yet.
- Move most of the Linux tasks to lower-CPU machines to allow more
tasks to run in parallel without hitting the community limit.
- Reorder the tasks slightly and give them comments to identify
platform groupings
- Enabled web "build all plugins together" and "build all examples"
tests
