Timothy Nikkel e657109f88 Bug 1159772. Don't let nsContainerFrame::SyncWindowProperties make widget calls that can result in synchronous painting during reflow or frame construction. r=mats ...

Specifically on Windows nsIWidget::SetTransparencyMode can result in sync painting.

So we give nsContainerFrame::SyncWindowProperties a sync or async option and use the view manager post pending update infrastructure to flush SyncWindowProperties calls async.

2015-05-04 14:29:19 -05:00

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