* Update project.pbxproj files to say Flutter rather than Chromium
Also, the templates now have an empty organization so that we don't cause people to give their apps a Flutter copyright.
* Update the copyright notice checker to require a standard notice on all files
* Update copyrights on Dart files. (This was a mechanical commit.)
* Fix weird license headers on Dart files that deviate from our conventions; relicense Shrine.
Some were already marked "The Flutter Authors", not clear why. Their
dates have been normalized. Some were missing the blank line after the
license. Some were randomly different in trivial ways for no apparent
reason (e.g. missing the trailing period).
* Clean up the copyrights in non-Dart files. (Manual edits.)
Also, make sure templates don't have copyrights.
* Fix some more ORGANIZATIONNAMEs
This reverts commit eb0b17902876f1a75eb7180c0b9f3571efb312b8.
Skia Gold post-submit test were failing due to the service account not being found on Cirrus.
Revert "Merge branch 'master' into master"
This reverts commit e3a03c04c4530b06e77383fd73d2c43644dc832a, reversing
changes made to 64749826498123e795c77f9bec8cea804a40a051.
When running git update-packages, if the goldens repo is dirty, the
flutter tool currently crashes and logs the failure from git pull.
This adds a check for a dirty git client and emits a friendlier error
message in the case where it's not clean, and avoid the crash by
catching the NonZeroExitCode exception and rethrowing as toolExit
instead.
Fixes: https://github.com/flutter/flutter/issues/28915
flutter_tools cannot depend on flutter_goldens (as flutter_goldens
depdends on the Flutter sdk), so this commit splits client.dart from
flutter_goldens to a pure-dart flutter_goldens_client package.
