Bug 129377 [Viewers] IDecorationContext.getContextIds() comment says it should be removed before M5
There is a similar comment in DecorationContext.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/DecorationContext.java
/**
	 * Constant that defines a default decoration context that has
	 * no context ids associated with it.
	 */
	public static final IDecorationContext DEFAULT_CONTEXT = new DecorationContext();
	
	private String[] contextIds;
	private Map properties = new HashMap();
	/**
	 * Create a decoration context.
	 */
	public DecorationContext() {
		this.contextIds = new String[0];
	}
	
	/**
	 * Create a decoration context with the given context ids
	 * @param contextIds the context ids for this decoration context
	 * @deprecated to be removed by M5
	 */
	public DecorationContext(String[] contextIds) {
		this.contextIds = contextIds;
	}
	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.IDecorationContext#getContextIds()
	 */
	public String[] getContextIds() {
		return contextIds;