Bug 71283 Type Hierarchy View should show active working set in content description [type hierarchy]
Eclipse 3.0 The type hierarchy should show the active working set in the content description. Instead of WorkbenchPart#setTitle(), it should use setContentDescription() to display the focus type and active working set.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
IActionBars actionBars= getViewSite().getActionBars();
		IToolBarManager tbmanager= actionBars.getToolBarManager();	
				
		if (orientation == VIEW_ORIENTATION_HORIZONTAL) {
			clearMainToolBar(tbmanager);
			ToolBar typeViewerToolBar= new ToolBar(fTypeViewerViewForm, SWT.FLAT | SWT.WRAP);
			fillMainToolBar(new ToolBarManager(typeViewerToolBar));
			fTypeViewerViewForm.setTopLeft(typeViewerToolBar);
		} else {
			fTypeViewerViewForm.setTopLeft(null);
			fillMainToolBar(tbmanager);
		}
	}
	
	private void fillMainToolBar(IToolBarManager tbmanager) {
		tbmanager.removeAll();
		for (int i= 0; i < fViewActions.length; i++) {
			tbmanager.add(fViewActions[i]);
		}
		tbmanager.add(fHistoryDropDownAction);
		tbmanager.update(false);	
	}
	private void clearMainToolBar(IToolBarManager tbmanager) {
		tbmanager.removeAll();
		tbmanager.update(false);		
	}	
	
	
	/**
	 * Creates the context menu for the hierarchy viewers