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
Collection profiles= null;
			try {
				profiles= ProfileStore.readProfilesFromFile(file);
			} catch (Exception e) {
				final String title= FormatterMessages.getString("CodingStyleConfigurationBlock.load_profile.error.title"); 
				final String message= FormatterMessages.getString("CodingStyleConfigurationBlock.load_profile.error.message"); 
				MessageDialog.openError(fComposite.getShell(), title, message);
			}
			if (profiles == null || profiles.isEmpty())
				return;
			
			final CustomProfile profile= (CustomProfile)profiles.iterator().next();
			
			if (ProfileVersioner.getVersionStatus(profile) > 0) {
				final String title= FormatterMessages.getString("CodingStyleConfigurationBlock.load_profile.error_too_new.title"); 
				final String message= FormatterMessages.getString("CodingStyleConfigurationBlock.load_profile.error_too_new.message"); 
			    MessageDialog.openWarning(fComposite.getShell(), title, message);
			}
			
			if (fProfileManager.containsName(profile.getName())) {
				final AlreadyExistsDialog aeDialog= new AlreadyExistsDialog(fComposite.getShell(), profile, fProfileManager);
				if (aeDialog.open() != Window.OK) 
					return;
			}
			ProfileVersioner.updateAndComplete(profile);
			fProfileManager.addProfile(profile);
		}
	}
	
	private class PreviewController implements Observer {