Bug 52159 [ActivityMgmt] Activity entry in window menu needs to be defined in object contribution
We should move the activity configuration menu entry to an object contribution in the IDE plug-in so that other applications do not have to have it or hack the UI.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/WorkbenchActionBuilder.java
workbenchContextSupport.getCompoundContextActivationService().addContextActivationService(contextActivationServiceA);
			}
		});
		menu.add(new Action("Remove context A from the workbench") {
			public void run() {
				IWorkbench workbench = PlatformUI.getWorkbench();
				IWorkbenchContextSupport workbenchContextSupport = (IWorkbenchContextSupport) workbench.getContextSupport();
				workbenchContextSupport.getCompoundContextActivationService().removeContextActivationService(contextActivationServiceA);
			}
		});
		
		menu.add(new Action("Add context B to the workbench") {
			public void run() {
				IWorkbench workbench = PlatformUI.getWorkbench();
				IWorkbenchContextSupport workbenchContextSupport = (IWorkbenchContextSupport) workbench.getContextSupport();
				workbenchContextSupport.getCompoundContextActivationService().addContextActivationService(contextActivationServiceB);
			}
		});
		menu.add(new Action("Remove context B from the workbench") {
			public void run() {
				IWorkbench workbench = PlatformUI.getWorkbench();
				IWorkbenchContextSupport workbenchContextSupport = (IWorkbenchContextSupport) workbench.getContextSupport();
				workbenchContextSupport.getCompoundContextActivationService().removeContextActivationService(contextActivationServiceB);
			}
		});
		
		menu.add(new Separator());
		
		menu.add(new Action("Add context A to the workbench page") {
			public void run() {