Bug 299083 Renderer does not do layout after a child view has been added
bundles/org.eclipse.e4.ui.workbench.swt/src/org/eclipse/e4/ui/workbench/swt/internal/PartRenderingEngine.java
public static final String engineURI = "platform:/plugin/org.eclipse.e4.ui.workbench.swt/"
			+ "org.eclipse.e4.ui.workbench.swt.internal.PartRenderingEngine";
	private String defaultRenderingFactoryId = "org.eclipse.e4.ui.workbench.renderers.default";
	private String curFactoryId = defaultRenderingFactoryId;
	IRendererFactory curFactory = null;
	class RenderingRecord {
		public Control widget;
		public AbstractPartRenderer renderer;
		public Object implementation;
		public int refCount = 0;