Bug 285529 [CommonNavigator] Incorrect pipeline logic for interceptXxx methods
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/internal/navigator/extensions/NavigatorContentExtension.java
contentService = aContentService;
		viewerManager = aViewerManager;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.ui.internal.navigator.extensions.INavigatorContentExtension
	 * #getId()
	 */
	public String getId() {
		return descriptor.getId();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.ui.internal.navigator.extensions.INavigatorContentExtension
	 * #getDescriptor()
	 */
	public INavigatorContentDescriptor getDescriptor() {
		return descriptor;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.ui.navigator.INavigatorContentExtension#getContentProvider()
	 */
	public ITreeContentProvider getContentProvider() {