[flutter_tool] Refactor Logger and Terminal to (mostly) no longer depend directly on context (#47269)

[flutter_tool][gallery] Standardize target platform override behavior in tool and update flutter gallery to support it (#46206)

[flutter_tool] fix NPE in daemon caused by returning null connection info from experimental web runner (#46909)

* Prposal for supporting URL tunnelling

* Update daemon.md

* Add the ability for daemon to call clients to expose URLs

* Fix dwds mock in web_fs tests

* Fix type error

* Remove build_runner import from run

* Move appStartedTime back to after the app has started

* Remove nested DI scope and pass urlTunneller down

* Fix import

* Tweak TODO

* Fix existing tests

* Fix spec to use result instead of params for response object

* Fix exposeUrl to use a url field, as spec'd

* Test that the daemon's exposeUrl sends a request and handles the response

* 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

* implicit-casts:false on flutter_tools

* use castStringKeyedMap

* address review comments

* address review comments

* fix issues after rebase

* Allow web server device to use extension if started with --start-paused

* Fix comment

* Remove browser-launch option that allowed using Chrome without launching Chrome

The web-server device should now be used if you don't want to launch a browser.

* Add tests for WebServerDevice with --start-paused

* Fixes from rebase

* More fixes from rebase

* Fix from rebase

* Fix condition for page refresh in non-debug builds

* Make dwds conditions match with a new getter

* Add missing .device

* Switch from using app.progress to app.url for passing web launch urls

* Update daemon.md

* Change app.url -> app.webLaunchUrl

* Add tests for app.webLaunchUrl event

* Update tests with recent changes after rebasing

This reverts commit e5d6d924.

* Update web runner message with flutter.dev/web

* Update spoopy test to use Warning instead

Ensure web restart analytics events aren't sent for failures/dont serve devtools by default  (#42260)

* add missing trailing commas

* add more missing trailing commas

* add more and more missing trailing commas