Bruno Leroux d003a7f2fb Reland - [Android] Add support for text processing actions (flutter/engine#46817)
## Description

This is a reland of https://github.com/flutter/engine/pull/44579 which was reverted in https://github.com/flutter/engine/pull/46788.

This reland adds a check into `onActivityResult` in order to return early if the result is related to an unknown request code (aka the result is related to a request sent by another plugin).
It also adds one test that simulates receiving such an unknown request code.

## Related Issue

Android engine side for https://github.com/flutter/flutter/issues/107603

## Tests

Adds 4 tests.
2023-10-16 05:43:15 +00:00
Languages
Dart 75%
C++ 16.5%
Objective-C++ 2.9%
Java 2.8%
Objective-C 0.7%
Other 1.9%