Andrew Davies 7da989f2c6
[flutter_driver] Use async call to run SSH cmds. (#27577)
For `fuchsia_compat.dart` Instead of using `runSync`, use `run` to avoid
deadlock when attempting to access specific resources like the Hub in Fuchsia.

The specific example is that in Fuchsia, the `find` command is
attempting to explore `out` which hasn't yet been serviced, as `find` is
blocking on it, causing a deadlock.
2019-02-06 14:41:56 -08:00
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