Bug 224428 [Viewers] Add set/getStyleRanges to ViewerRow
20080327 set/getStyleRenges are on ViewerCell, using the data element on the row to store the ranges. They use a private constant as key. As an implementor of a ViewerRow, you want to get access to the styled ranges. ViewerCell is not implementable. The correct way therefor would be to also add set/getStyleRenges to ViewerRow where implementors can use it or even override it (if their widget supports styled ranges)
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ViewerRow.java
* @return the number of columns
	 */
	public abstract int getColumnCount();
	/**
	 * Return the image at the columnIndex.
	 * 
	 * @param columnIndex
	 * @return {@link Image} or <code>null</code>
	 */
	public abstract Image getImage(int columnIndex);
	/**
	 * Set the image at the columnIndex
	 * 
	 * @param columnIndex
	 * @param image
	 */
	public abstract void setImage(int columnIndex, Image image);
	/**
	 * Get the text at the columnIndex.
	 * 
	 * @param columnIndex
	 * @return {@link String}
	 */
	public abstract String getText(int columnIndex);
	/**
	 * Set the text at the columnIndex
	 * 
	 * @param columnIndex
	 * @param text
	 */