Bug 51557 [formatter] pref page - restore defaults should select "Default" profile
Clicking on "Restore Defaults" should select the "Default [built-in]" profile.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/formatter/CodingStyleConfigurationBlock.java
private void updateProfiles() {
			fProfileCombo.setItems(fProfileManager.getSortedNames());
		}
		private void updateSelection() {
			fProfileCombo.setText(fProfileManager.getSelected().getName());
		}
	}
	
	private class ButtonController implements Observer, SelectionListener {
		
		public ButtonController() {
			fProfileManager.addObserver(this);
			fNewButton.addSelectionListener(this);
			fRenameButton.addSelectionListener(this);
			fEditButton.addSelectionListener(this);
			fDeleteButton.addSelectionListener(this);
			fSaveButton.addSelectionListener(this);
			fLoadButton.addSelectionListener(this);
			update(fProfileManager, null);
		}
		public void update(Observable o, Object arg) {
			final boolean state= ((ProfileManager)o).getSelected() instanceof CustomProfile;
			fEditButton.setText(state ? FormatterMessages.getString("CodingStyleConfigurationBlock.edit_button.desc")  
			    : FormatterMessages.getString("CodingStyleConfigurationBlock.show_button.desc")); 
			fDeleteButton.setEnabled(state);
			fSaveButton.setEnabled(state);
			fRenameButton.setEnabled(state);
		}
		public void widgetSelected(SelectionEvent e) {