WebKit:

WebKit:
	Fixed <rdar://problem/4027928> Tiger_8A394:Acrobat crashes while tried to remove the subscription errors by clicking on "Would you like to remove the subscription" from Tracker details view pane

	The Acrobat application triggers loads of new documents in it's policy delegate.  This
	ultimately causes the WebHTMLView to be released before their event handlers have
	returned.  To bullet proof against this case we retain/release self before passing
	the event on for further handling.

        Reviewed by Maciej.

        * WebView.subproj/WebHTMLView.m:
        (-[WebHTMLView _updateMouseoverWithEvent:]):
        (-[WebHTMLView scrollWheel:]):
        (-[WebHTMLView mouseDown:]):
        (-[WebHTMLView mouseDragged:]):
        (-[WebHTMLView mouseUp:]):
        (-[WebHTMLView keyDown:]):
        (-[WebHTMLView keyUp:]):
        (-[WebHTMLView performKeyEquivalent:]):

WebCore:
	Fixed <rdar://problem/4027928> Tiger_8A394:Acrobat crashes while tried to remove the subscription errors by clicking on "Would you like to remove the subscription" from Tracker details view pane

	A document may be deleted as a consequence of handling an event,
	as was the case with Acrobat.app.  Ensure that the document is still valid
	before passing the event on for further handling.

        * khtml/xml/dom_nodeimpl.cpp:
        (NodeImpl::dispatchUIEvent):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@8887 268f45cc-cd09-0410-ab3c-d52691b4dbfc