Need a way to test overlay scrollbars in DumpRenderTree 
https://bugs.webkit.org/show_bug.cgi?id=60716
Summary Need a way to test overlay scrollbars in DumpRenderTree
Adam Roben (:aroben)
Reported 2011-05-12 11:40:27 PDT
There's currently no way to test overlay scrollbars in DumpRenderTree. We should add a way to test them so that we can test all this awesome overlay scrollbar code we have!
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Adam Roben (:aroben)
Comment 1 2011-05-12 11:41:07 PDT
<rdar://problem/9428805>
Simon Fraser (smfr)
Comment 2 2013-11-08 17:52:08 PST
Currently the mock scrollbar theme clobbers internals.setUseOverlayScrollbars(true). When I tried to fix that I got crashes sending messages to invalid NSScrollerImp objects. But we should try to fix that!
Carlos Garcia Campos
Comment 3 2016-02-09 01:49:50 PST
In bug #153479, I implemented ScrollbarThemeMock::usesOverlayScrollbars() and updated the expectations of compositing/overflow/overflow-scrollbar-layer-positions.html
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