Bug 163274 [JFace] Provide customizable ToolTip at JFace level
More and more elements in JFace and UI request Customizable TooltipSupport. We should think about providing a common class providing a solid base for Tooltip implementations.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ColumnViewer.java
private ToolTipSupport tooltipSupport;
	/**
	 * The cell is a cached viewer cell used for refreshing.
	 */
	private ViewerCell cell = new ViewerCell(null, 0);
	/**
	 * Create a new instance of the receiver.
	 */
	public ColumnViewer() {
		super();
		tooltipSupport = new ToolTipSupport(this);