(In reply to Jeff Muizelaar [:jrmuizel] from comment #19) > Sotaro, do you know why the problem is happening on this page and we haven't otherwise seen this issue? How common do you expect this problem to be? I do not know why it happened. But nsHTMLCanvasFrame seemed to be re-created for every WebRenderLayerManager transaction. I am not sure how the problem is common, though I did not saw such symptom other than this page.
Bug 1555544 Comment 21 Edit History
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(In reply to Jeff Muizelaar [:jrmuizel] from comment #19) > Sotaro, do you know why the problem is happening on this page and we haven't otherwise seen this issue? How common do you expect this problem to be? I do not know why it happened. But nsHTMLCanvasFrame seemed to be re-created by NS_NewHTMLCanvasFrame for every WebRenderLayerManager transaction. I am not sure how the problem is common, though I did not saw such symptom other than this page.
(In reply to Jeff Muizelaar [:jrmuizel] from comment #19) > Sotaro, do you know why the problem is happening on this page and we haven't otherwise seen this issue? How common do you expect this problem to be? I do not know why it happened. But nsHTMLCanvasFrame seemed to be re-created by NS_NewHTMLCanvasFrame() for every WebRenderLayerManager transaction. I am not sure how the problem is common, though I did not saw such symptom other than this page.