Bug 211610 [Forms] Adopt new MPE key binding API
bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/editor/FormEditor.java
pageListeners.add(listener);
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.dialogs.IPageChangeProvider#removePageChangedListener(org.eclipse.jface.dialogs.IPageChangedListener)
	 */
	public void removePageChangedListener(IPageChangedListener listener) {
		pageListeners.remove(listener);
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.dialogs.IPageChangeProvider#getSelectedPage()
	 */
	public Object getSelectedPage() {
		return getActivePageInstance();
	}
	/**
	 * Adds the form page to this editor. Form page will be loaded lazily. Its
	 * part control will not be created until it is activated for the first
	 * time.
	 * 
	 * @param page
	 *            the form page to add
	 */
	public int addPage(IFormPage page) throws PartInitException {
		int i = super.addPage(page.getPartControl());
		configurePage(i, page);
		return i;