Greg Spencer a1b365111f Reland: "Adding app lifecycle notification for macOS and Linux, add hidden state." (#40542) (flutter/engine#42418) ...

## Description

This reverts commit 879917b to re-land #40542 to fix the lint warning which caused the original PR to be reverted (the lint warnings were turned on after the original was landed, which is why it wasn't caught earlier).

2023-05-30 20:45:46 +00:00

..

src/flutter

Reland: "Adding app lifecycle notification for macOS and Linux, add hidden state." (#40542) (flutter/engine#42418)

2023-05-30 20:45:46 +00:00