Bug 220767 [Dialogs] PopupDialog's HOVER_SHELLSTYLE should use SWT.TOOL
3.3.x and 3.4 M5. The SWT.TOOL flag should be used to create hover style shells, hence the PopupDialog's HOVER_SHELLSTYLE should use SWT.TOOL.
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/PopupDialog.java
*/
	public PopupDialog(Shell parent, int shellStyle, boolean takeFocusOnOpen,
			boolean persistSize, boolean persistLocation,
			boolean showDialogMenu, boolean showPersistActions,
			String titleText, String infoText) {
		super(parent);
		setShellStyle(shellStyle);
		this.takeFocusOnOpen = takeFocusOnOpen;
		this.showDialogMenu = showDialogMenu;
		this.showPersistActions = showPersistActions;
		this.titleText = titleText;
		this.infoText = infoText;
		setBlockOnOpen(false);
		this.persistSize = persistSize;
		this.persistLocation = persistLocation;
		initializeWidgetState();
	}
	/**
	 * Constructs a new instance of <code>PopupDialog</code>.
	 * 
	 * @param parent
	 *            The parent shell.
	 * @param shellStyle
	 *            The shell style.
	 * @param takeFocusOnOpen
	 *            A boolean indicating whether focus should be taken by this
	 *            popup when it opens.
	 * @param persistBounds
	 *            A boolean indicating whether the bounds (size and location) of
	 *            the dialog should be persisted upon close of the dialog. The