https://bugs.webkit.org/show_bug.cgi?id=68727

Reviewed by Simon Fraser.

We shouldn't update our compositing state in the middle of a paint. The call to
updateCompositingAndLayerListsIfNeeded() was added to RenderLayer::paintLayer in r45715, which was intended to
fix this exact issue. Based off the ChangeLog entries, I think that this was just a typo.

* rendering/RenderLayer.cpp:
(WebCore::RenderLayer::paintLayer):
(WebCore::RenderLayer::updateCompositingAndLayerListsIfNeeded):
* rendering/RenderLayerCompositor.cpp:
(WebCore::RenderLayerCompositor::updateCompositingLayers):
* rendering/RenderLayerCompositor.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@95863 268f45cc-cd09-0410-ab3c-d52691b4dbfc