Bug 61313 Platform native icons not used in dialogs
N20040506 For example the 'info' icon for operations in progress, the 'error' icon when an exception occurs, and the 'question' icon when asked to confirm a resource deletion. These used to use the native icons on Windows XP but now they look quite different and non-native. This is a fairly recent regression.
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/Dialog.java
* @param button
	 */
	protected void setButtonLayoutData(Button button) {
		GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
		data.heightHint = convertVerticalDLUsToPixels(IDialogConstants.BUTTON_HEIGHT);
		int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
		data.widthHint = Math.max(widthHint, button.computeSize(SWT.DEFAULT,
				SWT.DEFAULT, true).x);
		button.setLayoutData(data);
	}
	/**
	 * Set the layout data of the button to a FormData with appropriate heights
	 * and widths.
	 * 
	 * @param button
	 */
	protected void setButtonLayoutFormData(Button button) {
		FormData data = new FormData();
		data.height = convertVerticalDLUsToPixels(IDialogConstants.BUTTON_HEIGHT);
		int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
		data.width = Math.max(widthHint, button.computeSize(SWT.DEFAULT,
				SWT.DEFAULT, true).x);
		button.setLayoutData(data);
	}
	/**
	 * @see org.eclipse.jface.window.Window#close()
	 */
	public boolean close() {
		boolean returnValue = super.close();
		if (returnValue) {