[Webkit-unassigned] [Bug 45572] WebAccessibilityCacheImpl needs to handle invalid accessibility object ids

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=45572





--- Comment #8 from chris.guillory at google.com  2010-09-12 23:02:25 PST ---
> after calling updateBackingStore() it's possible that m_private will be invalidated (on the WebCore side at least, where it's called m_object). 
> you should probably confirm that the object is still valid after calling this method
I'm adding this method to determine if the WebAccessibilityObject is valid. Perhaps I should just name this method isValid(). An invalid WebCore::AccessibilityObject has an ID of 0.

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