* Fix powershell cat invocation to ensure correct encoding and line ending.

* Restore original flow for non-Windows platforms

* Reformat code to get rid of multi-line ?: expression

* Double quotes to single quotes

* add new lints from linter-0.1.45

* add new lints from linter-0.1.46

Adds Java EE module to SDK manager environment to stop missing xml library exception when checking for licenses. (#16035)

* Fix absolute shebang in /bin/flutter

* Fix absolute shebang in bin/internal/update_dart_sdk.sh

* Let CupertinoTabScaffold's tab be programmatically selectable

* Re-use the tab bar's index instead

* review

Added a call to debugCheckHasMaterial() at the start of TextField's build method.

* add logic to parse 11.3 sim runtime major version

* add null aware and bump group number

* add comment describing version

* Fix gallery build ruby script

* Also print a message when not deploying

This is to pick up updated dart roll.

* Update dartdoc to v0.18.1 and fix API readme, borrowing from docs.flutter.io

Changes since last roll:
```
ec1e96864 Revert pub roll from recent dart roll. (#4904)
ac552fba4 Port flutter content handler to FIDL2. (#4903)
94cdd8103 Roll dart. (#4902)
af63732de Support `Path.addCircle` (#4783)
564c6a5a9 Add hint to use ninja with goma (#4894)
```
```

Includes:
* libtxt: move to the next run if the current run ends before the start of the line block (flutter/engine#4891)
* Rolled Dart SDK to e3051175192c83fafa3636c0f16d804734bb285a (flutter/engine#4877)

Revert "Make sure `flutter update-packages --verify-only` has a non-zero exit code (#15962)" (#16089)

This reverts commit cfda7a65.

* make sure --verify-only logs error messages and fix typo

* ensure non zero exit code

* undo random pubspec change

Fixes https://github.com/flutter/flutter/issues/14864

* add simple test case for passing shadow color through physical layer

* Update physical_model_test.dart

add newline

* AppBar accepts custom PageRoute

* remove unused import

* update AUTHORS

It's required to be set before we detect local engine.

Was broken by #15984

add --buildNumber and --buildName to flutter build like
flutter build apk --buildNumber=42 --buildName=1.0.42

Paying off technical debt...

This reverts commit 1f5d9041.

* Let iOS auto-signing tool handle Googler scenario

* Forgot to update tests

* Revert "Roll engine to 6473f1b106485cb0b4ea569af383173daeef8895 (#16032)"

This reverts commit 844ced01.

* Revert "Let travis test archiving per commit too (#16004)"

This reverts commit df5905f3.

Includes:
* Use newer Skia API for constructing mask blur filters (flutter/engine#4875)
* Retry fixing vulkan include (flutter/engine#4874)

Follow-up comments to #15984