Bug 32053 [Import/Export] Need busy cursor when loading page
M5 build - start eclipse in Resource perspective - File / Import - double-click on External Plug-ins and Fragments - it takes a while to load, but there is no busy cursor
bundles/org.eclipse.jface/src/org/eclipse/jface/wizard/WizardDialog.java
* it is no larger than the display bounds.
	 * 
	 * @param width the shell width
	 * @param height the shell height
	 */
	private void setShellSize(int width, int height) {
		getShell().setSize(width, height);
		constrainShellSize();
	}
	/**
	 * Computes the correct dialog size for the current page and resizes 
	 * its shell if nessessary. Also causes the container to refresh its
	 * layout.
	 * 
	 * @param page the wizard page to use to resize the dialog
	 * @since 2.0
	 */
	protected void updateSize(IWizardPage page) {
		if (page == null || page.getControl() == null)
			return;
		updateSizeForPage(page);
		pageContainerLayout.layoutPage(page.getControl());
	}
	/**
	 * Computes the correct dialog size for the given page and resizes 
	 * its shell if nessessary.
	 *
	 * @param page the wizard page
	 */
	private void updateSizeForPage(IWizardPage page) {