1. DomName('WebGL2RenderingContext.deleteFramebuffer')
  2. DocsEditable()
  3. Experimental()
void deleteFramebuffer(Framebuffer framebuffer)

Source 

@DomName('WebGL2RenderingContext.deleteFramebuffer')
@DocsEditable()
@Experimental() // untriaged
void deleteFramebuffer(Framebuffer framebuffer) => _blink.BlinkWebGL2RenderingContext.instance.deleteFramebuffer_Callback_1_(this, framebuffer);