1. @DomName('WebGL2RenderingContext.deleteQuery')
  2. @DocsEditable()
  3. @Experimental()
void deleteQuery(Query query)

Source 

@DomName('WebGL2RenderingContext.deleteQuery')
@DocsEditable()
@Experimental() // untriaged
void deleteQuery(Query query) => _blink.BlinkWebGL2RenderingContext.instance
    .deleteQuery_Callback_1_(this, query);