Bug 277676 [UI] The workbench should create the contexts
The workbench should create contexts for the model elements, MApplication and MParts (windows, sashes, contributed parts, etc). This is not really the responsibility of the renderers. PW
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/ApplicationPackage.java
* <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MTOOL_BAR_ITEM_FEATURE_COUNT = MHANDLED_ITEM_FEATURE_COUNT + 0;
	/**
	 * The meta object id for the '{@link org.eclipse.e4.ui.model.internal.application.MItemContainerImpl <em>MItem Container</em>}' class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see org.eclipse.e4.ui.model.internal.application.MItemContainerImpl
	 * @see org.eclipse.e4.ui.model.internal.application.ApplicationPackageImpl#getMItemContainer()
	 * @generated
	 */
	int MITEM_CONTAINER = 12;
	/**
	 * The feature id for the '<em><b>Owner</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MITEM_CONTAINER__OWNER = MAPPLICATION_ELEMENT__OWNER;
	/**
	 * The feature id for the '<em><b>Id</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MITEM_CONTAINER__ID = MAPPLICATION_ELEMENT__ID;