class BrowserActionSetIconParams extends ChromeObject {
 BrowserActionSetIconParams({var imageData, var path, int tabId}) {
   if (imageData != null) this.imageData = imageData;
   if (path != null) this.path = path;
   if (tabId != null) this.tabId = tabId;
 }
 BrowserActionSetIconParams.fromProxy(JsObject jsProxy): super.fromProxy(jsProxy);

 /**
  * Either an ImageData object or a dictionary {size -> ImageData} representing
  * icon to be set. If the icon is specified as a dictionary, the actual image
  * to be used is chosen depending on screen's pixel density. If the number of
  * image pixels that fit into one screen space unit equals `scale`, then image
  * with size `scale` * 19 will be selected. Initially only scales 1 and 2 will
  * be supported. At least one image must be specified. Note that
  * 'details.imageData = foo' is equivalent to 'details.imageData = {'19':
  * foo}'
  */
 dynamic get imageData => jsProxy['imageData'];
 set imageData(var value) => jsProxy['imageData'] = jsify(value);

 /**
  * Either a relative image path or a dictionary {size -> relative image path}
  * pointing to icon to be set. If the icon is specified as a dictionary, the
  * actual image to be used is chosen depending on screen's pixel density. If
  * the number of image pixels that fit into one screen space unit equals
  * `scale`, then image with size `scale` * 19 will be selected. Initially only
  * scales 1 and 2 will be supported. At least one image must be specified.
  * Note that 'details.path = foo' is equivalent to 'details.imageData = {'19':
  * foo}'
  */
 dynamic get path => jsProxy['path'];
 set path(var value) => jsProxy['path'] = jsify(value);

 /**
  * Limits the change to when a particular tab is selected. Automatically
  * resets when the tab is closed.
  */
 int get tabId => jsProxy['tabId'];
 set tabId(int value) => jsProxy['tabId'] = value;
}