Bug 168888 [Wizards] PageTransition classes may need rename/reorg
bundles/org.eclipse.jface/src/org/eclipse/jface/wizard/Wizard.java
* (non-Javadoc) Method declared on IWizard.
     */
    public boolean needsProgressMonitor() {
        return needsProgressMonitor;
    }
    /**
     * The <code>Wizard</code> implementation of this <code>IWizard</code>
     * method does nothing and returns <code>true</code>. Subclasses should
     * reimplement this method if they need to perform any special cancel
     * processing for their wizard.
     */
    public boolean performCancel() {
        return true;
    }
    /**
     * Subclasses must implement this <code>IWizard</code> method to perform
     * any special finish processing for their wizard.
     */
    public abstract boolean performFinish();
    /*
     * (non-Javadoc) Method declared on IWizard.
     */
    public void setContainer(IWizardContainer wizardContainer) {
        container = wizardContainer;
        hookPageTransitionProvider();
    }
    /**
     * Sets the default page image descriptor for this wizard.
     * <p>
     * This image descriptor will be used to generate an image for a page with