[webkit-reviews] review requested: [Bug 17143] :first-child does not update dynamically when the DOM changes : [Attachment 18858] Make sure to check m_collectRulesOnly to avoid crashes

[bugzilla-daemon at webkit.org]

Dave Hyatt <hyatt at apple.com> has asked	for review:
Bug 17143: :first-child does not update dynamically when the DOM changes
http://bugs.webkit.org/show_bug.cgi?id=17143

Attachment 18858: Make sure to check m_collectRulesOnly to avoid crashes
http://bugs.webkit.org/attachment.cgi?id=18858&action=edit

------- Additional Comments from Dave Hyatt <hyatt at apple.com>
This patch fixes a crasher.  It's the same one as reported in
http://bugs.webkit.org/show_bug.cgi?id=17141.  I went ahead and patched the
empty state case as well as the first-child and first-of-type cases.