[webkit-reviews] review requested: [Bug 13015] REGRESSION (r17233-r17241): Repro crash when leaving a page whose unload handler submits a form : [Attachment 13547] Add missing null check

[bugzilla-request-daemon at macosforge.org]

mitz at webkit.org has asked  for review:
Bug 13015: REGRESSION (r17233-r17241): Repro crash when leaving a page whose
unload handler submits a form
http://bugs.webkit.org/show_bug.cgi?id=13015

Attachment 13547: Add missing null check
http://bugs.webkit.org/attachment.cgi?id=13547&action=edit