Jason Simmons d7f5547ecd
Do a clean shutdown of the flutter_tools processes started by observatory_port_test (#159169)
Killing the flutter_tools parent process may leak child processes
spawned by the tools.

Also wait for the message indicating that DevTools has started before
stopping flutter_tools. If DevTools has not fully launched, then there
may be a race between DevTools startup and flutter_tools shutdown.

Fixes https://github.com/flutter/flutter/issues/159154
2024-11-21 19:04:06 +00:00
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