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
private ArrayList fInputHistory;
	
	private IMemento fMemento;
	private IDialogSettings fDialogSettings;
	
	private TypeHierarchyLifeCycle fHierarchyLifeCycle;
	private ITypeHierarchyLifeCycleListener fTypeHierarchyLifeCycleListener;
	
	private IPropertyChangeListener fPropertyChangeListener;
		
	private SelectionProviderMediator fSelectionProviderMediator;
	private ISelectionChangedListener fSelectionChangedListener;
	private IPartListener2 fPartListener;
	private int fCurrentOrientation;
	int fOrientation= VIEW_ORIENTATION_AUTOMATIC;
	boolean fInComputeOrientation= false;
	
	private boolean fLinkingEnabled;
	private boolean fSelectInEditor;
	
	private boolean fIsVisible;
	private boolean fNeedRefresh;	
	private boolean fIsEnableMemberFilter;
	private boolean fIsRefreshRunnablePosted;
	
	private int fCurrentViewerIndex;
	private TypeHierarchyViewer[] fAllViewers;