Bug 168888 [Wizards] PageTransition classes may need rename/reorg
bundles/org.eclipse.jface/src/org/eclipse/jface/wizard/Wizard.java
}
    /**
     * Adds a new page to this wizard. The page is inserted at the end of the
     * page list.
     * 
     * @param page
     *            the new page
     */
    public void addPage(IWizardPage page) {
        pages.add(page);
        page.setWizard(this);
    }
    /* (non-Javadoc)
	 * @see org.eclipse.jface.dialogs.IPageTransitionListener#pageTransition(org.eclipse.jface.dialogs.PageTransitionEvent)
	 */
	public void pageTransition(PageTransitionEvent event) {
		int eventType = event.getType();
		if (eventType == PageTransitionEvent.EVENT_NEXT) {
			event.doit = doNextPressed();
		}
		else if (eventType == PageTransitionEvent.EVENT_BACK){
			event.doit = doBackPressed();
		}
	}
	/**
	 * Add the listener that gets notified when a page is transitioning.
	 */
    private void hookPageTransitionProvider(){
		IPageTransitionProvider provider = getPageTransitionProvider();
		if (provider != null)