`nsDocumentViewer::DestroyPresShell` as last step releases its `mPresShell` which releases the arena memory. This can be a quite expensive operation, which can be better deferred a bit to blcok the main thread less long.
Bug 1902728 Comment 0 Edit History
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`nsDocumentViewer::DestroyPresShell` as last step releases its `mPresShell` which releases the arena memory. This can be a quite expensive operation, which can be better deferred a bit to block the main thread less long.