1. @DomName('WebGLRenderingContext.activeTexture')
  2. @DocsEditable()
void activeTexture(int texture)

Source 

@DomName('WebGLRenderingContext.activeTexture')
@DocsEditable()
void activeTexture(int texture) => _blink.BlinkWebGLRenderingContext.instance
    .activeTexture_Callback_1_(this, texture);