3fe49ec35d
This is a Fuchsia-only shell test, confirming that when the timezone setting is changed on the realm via Fuchsia's FIDL interface `fuchsia.settings.Intl`, the Dart isolate running in that realm receives the change and starts reporting the appropriate timestamp. We already have a [similar test][tst] that verifies the timezones in the dart VM matches the local timezone at start, but there was no test that also verified timezone changes. [tst]: https://github.com/flutter/engine/blob/master/shell/common/shell_unittests.cc#L1166 See issue #61284
Flutter Engine
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