Bug 277513 [Compatibility] Remove WorkbenchFactory
The factory is currently used to call the e4 Workbench constructor, but it adds another layer of indirection that we don't need at this point in time. PW
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/workbench/ui/internal/Workbench.java
* @param f
	 *            the IContributionFactory already provided to <code>r</code>
	 */
	public static void initializeRenderer(IExtensionRegistry registry,
			PartRenderer r, IEclipseContext context, IContributionFactory f) {
		
		
		
		IConfigurationElement[] factories = registry
				.getConfigurationElementsFor("org.eclipse.e4.workbench.partfactory"); 
		
		
		int offset = 0;
		for (int i = 0; i < factories.length; i++) {
			String clsSpec = factories[i].getAttribute("class"); 
			if (clsSpec.indexOf("Legacy") >= 0 
					|| clsSpec.indexOf("PartSash") >= 0) { 
				IConfigurationElement tmp = factories[offset];
				factories[offset++] = factories[i];
				factories[i] = tmp;
			}
		}
		for (int i = 0; i < factories.length; i++) {
			PartFactory factory = null;
			try {
				factory = (PartFactory) factories[i]
						.createExecutableExtension("class"); 
			} catch (CoreException e) {
				e.printStackTrace();
			}