Bug 53386 [ActivityMgmt] Remove show All from everywhere except new wizards
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
* <code>INFORMATION</code>, <code>WARNING</code>, or <code>ERROR</code>.
	 * </p>
	 * <p>
	 * Note that for backward compatibility, a message of type <code>ERROR</code> 
	 * is different than an error message (set using <code>setErrorMessage</code>). 
	 * An error message overrides the current message until the error message is 
	 * cleared. This method replaces the current message and does not affect the 
	 * error message.
	 * </p>
	 *
	 * @param newMessage the message, or <code>null</code> to clear
	 *   the message
	 * @param newType the message type
	 * @since 2.0
	 */
	public void setMessage(String newMessage, int newType) {
		messageArea.updateText(newMessage,newType);
	}
	/**
	 * Sets the minimum page size.
	 *
	 * @param minWidth the minimum page width
	 * @param minHeight the minimum page height
	 * @see #setMinimumPageSize(Point)
	 */
	public void setMinimumPageSize(int minWidth, int minHeight) {
		minimumPageSize.x = minWidth;
		minimumPageSize.y = minHeight;
	}
	/**