We currently don't have support for the lighting filters, though we already build filter effect objects for those.
DistantLightSource & PointLightSource are RefCounted objects w/o create() objects, leading to referennce counting bugs.
Just testing a patch that fixes those. Uploading later.
FYI: Besides that, filters are up & running on win/mac/gtk/qt!
Created attachment 44584 [details]
Attachment 44584 [details] did not pass style-queue:
Failed to run "WebKitTools/Scripts/check-webkit-style" exit_code: 1
WebCore/svg/graphics/filters/SVGLightSource.h:28: Alphabetical sorting problem. [build/include_order] 
Total errors found: 1
Created attachment 44585 [details]
Picky Mrs. Stylebot...
style-queue ran check-webkit-style on attachment 44585 [details] without any errors.
Comment on attachment 44585 [details]
Land your own patches :P :D
Looks good, it concerns me that we seem to repeatedly create new LightSource objects but that's a distinct issue
Thanks Oliver. The patch only aims to fix the leaks - once the lighting filters will be implemented, these issues will be resolved.
Ping? Looks like this has been reviewed for a little over 2 weeks. I assume the holiday season has just gotten in the way of landing?
Oops, this has already been landed, a while ago. Forgot to close.