So that when we turn on tiled drawing for mac-wk2 on all tests, we don't need separate results for every test that deals with GraphicsLayer tree dumps. This *will* require rebaselining the current tiled-drawing tests, though.
Created attachment 213115 [details]
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Attachment 213115 [details] did not pass win-ews (win):
Created attachment 213118 [details]
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View in context: https://bugs.webkit.org/attachment.cgi?id=213118&action=review
> + return (m_isMainFrameRenderViewLayer && layer && layer == m_childContainmentLayer.get());
No need for the parentheses here.