All the remaining crashes seemed to happen under D3D11YCbCrImage::GetAsSourceSurface() and the GetAsSourceSurface() was called from BasicImageLayer::Paint() or sLayoutUtils::SurfaceFromElement().
Bug 1386487 Comment 16 Edit History
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All the remaining crashes seemed to happen under D3D11YCbCrImage::GetAsSourceSurface() and the GetAsSourceSurface() was called from BasicImageLayer::Paint() or LayoutUtils::SurfaceFromElement().