NEW166655
Avoid null dereference when search input is not part of a document 
https://bugs.webkit.org/show_bug.cgi?id=166655
Summary Avoid null dereference when search input is not part of a document
Brent Fulgham
Reported 2017-01-03 11:24:26 PST
Crash traces indicate that the SearchInputType object can get into a state where the results or cancel buttons are not part of a Document. When this happens, the computedStyle() accessor returns nullptr, which can cause a crash. This patch protects against accidentally dereferencing the nullptr returned in this case.
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Alexey Proskuryakov
Comment 1 2017-01-03 16:09:13 PST
Is it OK for the objects to be in this state? In other words, will the null check convert a crash into a misbehavior, or is it a complete fix?
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