Bug 211220 Add Browser to ControlExample
examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/Tab.java
* listener that will recreate the example controls.  If the
		 * style group button is a RADIO button, ensure that the radio
		 * button is selected before recreating the example controls.
		 * When the user selects a RADIO button, the current RADIO
		 * button in the group is deselected and the new RADIO button
		 * is selected automatically.  The listeners are notified for
		 * both these operations but typically only do work when a RADIO
		 * button is selected.
		 */
		SelectionListener selectionListener = new SelectionAdapter () {
			public void widgetSelected (SelectionEvent event) {
				if ((event.widget.getStyle () & SWT.RADIO) != 0) {
					if (!((Button) event.widget).getSelection ()) return;
				}
				recreateExampleWidgets ();
			}
		};
		Control [] children = styleGroup.getChildren ();
		for (int i=0; i<children.length; i++) {
			if (children [i] instanceof Button) {
				Button button = (Button) children [i];
				button.addSelectionListener (selectionListener);
			} else {
				if (children [i] instanceof Composite) {
					
					Composite composite = (Composite) children [i];
					Control [] grandchildren = composite.getChildren ();
					for (int j=0; j<grandchildren.length; j++) {
						if (grandchildren [j] instanceof Button) {
							Button button = (Button) grandchildren [j];