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 boolean isShowQualifiedTypeNames() {
		return fShowQualifiedTypeNamesAction.isChecked();
	}
	
	/**
	 * Called from ITypeHierarchyLifeCycleListener.
	 * Can be called from any thread
	 */
	protected void doTypeHierarchyChanged(final TypeHierarchyLifeCycle typeHierarchy, final IType[] changedTypes) {
		if (!fIsVisible) {
			fNeedRefresh= true;
			return;
		}
		if (fIsRefreshRunnablePosted) {
			return;
		}
		
		Display display= getDisplay();
		if (display != null) {
			fIsRefreshRunnablePosted= true;
			display.asyncExec(new Runnable() {
				public void run() {
					try {
						if (fPagebook != null && !fPagebook.isDisposed()) {
							doTypeHierarchyChangedOnViewers(changedTypes);
						}
					} finally {
						fIsRefreshRunnablePosted= false;
					}
				}