Bug 63159 [Progress] Progress dialog "Run in Background" button does not resize with larger font
If you set the dialog font to something large, the "Run in background" button does not correctly resize.
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/Dialog.java
* Image registry key for info message image (value
	 * <code>"dialog_messasge_info_image"</code>).
	 * 
	 * @since 2.0
	 */
	public static final String DLG_IMG_MESSAGE_INFO = "dialog_messasge_info_image"; 
	/**
	 * Image registry key for info message image (value
	 * <code>"dialog_messasge_warning_image"</code>).
	 * 
	 * @since 2.0
	 */
	public static final String DLG_IMG_MESSAGE_WARNING = "dialog_messasge_warning_image"; 
	/**
	 * Image registry key for info message image (value
	 * <code>"dialog_message_error_image"</code>).
	 * 
	 * @since 2.0
	 */
	public static final String DLG_IMG_MESSAGE_ERROR = "dialog_message_error_image"; 
	
	/**
	 * The ellipsis is the string that is used to represent shortened
	 * text.
	 * @since 3.0
	 */
	public static final String ELLIPSIS = "..."; 
	/**
	 * NOTE: Dialog does not the following images in the registry
	 * 	 	DLG_IMG_ERROR