This adds the ability to define variants of tests with different environmental values for a particular testWidgets test.
This allows you to run the same test multiple times with a different test environment. One test variant has been implemented that allows running a test with different settings of the TargetPlatform.
This PR rewrites MouseTracker's lifecycle, so that mouse callbacks are all triggered in post frame, instead of the current one where some are triggered during the build phase. This PR also changes the onExit callback to MouseRegion, RenderMouseRegion, and MouseTrackerAnnotation, so that it is no longer triggered on dispose.
* 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
Ian Hickson
Alexandre Ardhuin
Greg Spencer
David Iglesias
Sam Rawlins
Dan Field
Lau Ching Jun
Kate Lovett
Shouichi Kamiya
Tong Mu
Michael Goderbauer