Andreas Kling 9c1c885483 WindowServer: Add locking and fix coalesced invalidation race. ...

WSWindowManager::invalidate() had a bug where it would mark the entire screen
rect as dirty, but it wouldn't scheduled a deferred recompose.

This would cause any subsequent calls to invalidate(Rect) to be coalesced
with the pending compose, but the pending compose never happened.

2019-02-12 09:25:50 +01:00

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