https://bugs.webkit.org/show_bug.cgi?id=30779

Patch by Antonio Gomes <tonikitoo@webkit.org> on 2009-10-27
Reviewed by Antti Koivisto and Holger Freyther.

The fact that it was been set from external objects of qwebpage
and not being deleted internally can lead to dangling references.

* Api/qgraphicswebview.cpp:
(QGraphicsWebView::~QGraphicsWebView):
* Api/qwebpage.cpp:
(QWebPagePrivate::QWebPagePrivate):
(QWebPagePrivate::createContextMenu):
(QWebPagePrivate::handleSoftwareInputPanel):
(QWebPagePrivate::keyPressEvent):
(QWebPage::setView):
(QWebPage::view):
(QWebPage::javaScriptAlert):
(QWebPage::javaScriptConfirm):
(QWebPage::javaScriptPrompt):
(QWebPage::shouldInterruptJavaScript):
(QWebPage::createWindow):
(QWebPage::extension):
(QWebPage::chooseFile):
(QWebPage::userAgentForUrl):
* Api/qwebpage_p.h:
* Api/qwebview.cpp:
(QWebView::~QWebView):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@50142 268f45cc-cd09-0410-ab3c-d52691b4dbfc