commit edecc10eeeeaef66d5698d69483cd95c98b92d57
author carlosgc@webkit.org <carlosgc@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Wed Apr 20 08:47:45 2016 +0000
committer carlosgc@webkit.org <carlosgc@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Wed Apr 20 08:47:45 2016 +0000
tree 1a2db66f9f8ce49c1e236618792f5b296af45cba
parent b7c87ec9ebba59478c413a7e1cd9e847a0e75379

[Cairo] Crash in GraphicsContext::drawFocusRing when painting is disabled
https://bugs.webkit.org/show_bug.cgi?id=156785

Reviewed by Žan Doberšek.

This happens for example when view state changes to focus and paint is called from
FrameView::updateControlTints() with a graphics context that doesn't have a platform context. Layout test
fast/images/image-map-outline-with-scale-transform.html sometimes crashes because of this.

* platform/graphics/cairo/GraphicsContextCairo.cpp:
(WebCore::GraphicsContext::drawFocusRing): Return early if painting is disabled.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@199769 268f45cc-cd09-0410-ab3c-d52691b4dbfc