Fixes https://github.com/flutter/flutter/issues/163429 If we synchronously call into dart ui when dispatching pointer events, then we only end up scheduling about ~half as many frames as we should. Nothing is blocked, no task starvation, et cetera. It should always be safe to post pointer events as a new task instead.
buildroot
Build environment for the Flutter engine
This repository is used by the flutter/engine repository. For instructions on how to use it, see that repository's CONTRIBUTING.md file.
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