Co-authored-by: Renzo Olivares <roliv@google.com>

This reverts commit 4ec4c249.

Bug fix for focusing a field with right click on existing selection (Mac and iOS)

* Add fadeDuration back to TextSelectionOverlay

* fix build and add dart fix

* format

* add test

This reverts commit c74a646b.

* Clean up ClipboardStatusNotifier

* fix

* fix test

* more refactaaaaagit add .

* Refactor TextSelectionOverlay

* fix test

* remove print

* fix more tests

* update

* added tests

* fix comments

* fmt

* fix test

* addressing comment

* remove dispose

* remove new line

* Unify Text selection API

* fix test

* further simplify

* fix more tests

* styling change

Cut now explicitly updates the clipboard status.

This reverts commit 5fd259be.

Use the hasStrings clipboard method when possible instead of reading the contents of the clipboard.

This reverts commit 35ad43f2.

This reverts commit c26ed03c.

* Migrate to ChannelBuffers.push

* Move TestDefaultBinaryMessenger to its own file

* Apply deprecations and fix usages

This reverts commit a46139a2.