Reviewed by Hyatt.

    Reviewed by Hyatt.

	- fixed <rdar://problem/3906974> assertion failure in QWidget::beforeMouseDown clicking on <select multiple>

	* kwq/KWQListBox.mm:
        (QListBox::QListBox): Initialize KWQListBoxScrollView with this.
        (-[KWQListBoxScrollView initWithListBox:]): Make this class a KWQWidgetHolder.
        (-[KWQListBoxScrollView widget]): See above.
        (-[KWQTableView mouseDown:]): Pass outerView rather than self to beforeMouseDown and
	afterMouseDown, to avoid triggering an assertion failure.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@8143 268f45cc-cd09-0410-ab3c-d52691b4dbfc