code: @Override
  	public InputSource resolveStylesheet(String identifier, ScssStylesheet parentStylesheet) {
  
  		return resolver.resolve(parentStylesheet, identifier);
  	}
docs: /*
  (non-Javadoc)
  
  @see com.vaadin.sass.internal.ScssStylesheet#resolveStylesheet(java.lang.
  String, com.vaadin.sass.internal.ScssStylesheet)