Bug 181061 [Viewers] JFace viewers performance issues in 3.3
A number of the JFace performance tests are red since I20060926-0800.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ColumnViewer.java
viewerEditor.cancelEditing();
		}
	}
	/**
	 * Apply the value of the active cell editor if one is active.
	 * 
	 * @since 3.3
	 */
	protected void applyEditorValue() {
		if (viewerEditor != null) {
			viewerEditor.applyEditorValue();
		}
	}
	/**
	 * Starts editing the given element at the given column index.
	 * 
	 * @param element
	 *            the model element
	 * @param column
	 *            the column index
	 * @since 3.1 (in subclasses, added in 3.3 to abstract class)
	 */
	public void editElement(Object element, int column) {
		if (viewerEditor != null) {
			Widget item = findItem(element);
			if (item != null) {
				ViewerRow row = getViewerRowFromItem(item);
				if (row != null) {
					ViewerCell cell = row.getCell(column);
					if (cell != null) {