[Qt][WK1] Remember denied permission for notifications
https://bugs.webkit.org/show_bug.cgi?id=107694

Reviewed by Jocelyn Turcotte.

Store denied permissions. According to the specification, we should
ask the user again if he has already granted or denied permission.

* WebCoreSupport/NotificationPresenterClientQt.cpp:
(WebCore::NotificationPresenterClientQt::requestPermission):
(WebCore::NotificationPresenterClientQt::setNotificationsAllowedForFrame):
* WebCoreSupport/NotificationPresenterClientQt.h:
(NotificationPresenterClientQt):
* WebCoreSupport/QWebPageAdapter.cpp:
(QWebPageAdapter::setNotificationsAllowedForFrame):
* WebCoreSupport/QWebPageAdapter.h:
* WidgetApi/qwebpage.cpp:
(QWebPage::setFeaturePermission):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@141233 268f45cc-cd09-0410-ab3c-d52691b4dbfc