Bug 153943 [Viewers] Rename new API, e.g. RowPart -> ViewerRow
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TreeViewer.java
* @since 3.1
	 */
	public boolean isCellEditorActive() {
		return treeViewerImpl.isCellEditorActive();
	}
	/*
	 * (non-Javadoc) Method declared in AbstractTreeViewer.
	 */
	protected Item newItem(Widget parent, int flags, int ix) {
		TreeItem item;
		
		if (parent instanceof TreeItem) {
			item = (TreeItem)createNewRowPart(getRowPartFromItem(parent),flags, ix).getItem();
		} else {
			item = (TreeItem)createNewRowPart(null,flags, ix).getItem();
		}
		
		return item;
	}
	/*
	 * (non-Javadoc) Method declared in AbstractTreeViewer.
	 */
	protected void removeAll(Control widget) {
		((Tree) widget).removeAll();
	}
	/**
	 * Sets the cell editors of this tree viewer.
	 * 
	 * @param editors
	 *            the list of cell editors