Bug 221521 [Markers] New markers API needs to be pared down
We have too much API in some of the new classes and they can be moved to internals
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/MarkerCompletionField.java
* @see org.eclipse.ui.internal.provisional.views.markers.MarkerField#getColumnHeaderText()
	 */
	public String getColumnHeaderText() {
		return MarkerSupportConstants.EMPTY_STRING;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.internal.provisional.views.markers.api.MarkerField#getColumnTooltipText()
	 */
	public String getColumnTooltipText() {
		return MarkerMessages.completion_description;
	}
	/**
	 * Return the image for task completion.
	 * 
	 * @return Image
	 */
	private Image getCompleteImage() {
		return MarkerSupportInternalUtilities.createImage(COMPLETE_IMAGE_PATH);
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.internal.provisional.views.markers.api.MarkerField#getDefaultColumnWidth(org.eclipse.swt.widgets.Control)
	 */
	public int getDefaultColumnWidth(Control control) {
		return 40;
	}
	/**