Bug 1523562 [wpt PR 15067] - Update interfaces/shape-detection-api.idl, a=testonly

Automatic update from web-platform-tests
Update interfaces/shape-detection-api.idl (#15067)

Source: https://github.com/tidoust/reffy-reports/blob/2520482/whatwg/idl/shape-detection-api.idl
Build: https://travis-ci.org/tidoust/reffy-reports/builds/484239405
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wpt-commits: f9b68c7fc7824f7e19da1c9ea500a8b3fddf3935
wpt-pr: 15067

testing/web-platform/tests/interfaces/shape-detection-api.idl

@@ -34,7 +34,7 @@ enum LandmarkType {
 [Exposed=(Window,Worker),
  Constructor(optional BarcodeDetectorOptions barcodeDetectorOptions)]
 interface BarcodeDetector {
-  readonly attribute FrozenArray<BarcodeFormat> supportedFormats;
+  static Promise<sequence<BarcodeFormat>> getSupportedFormats();
 
   Promise<sequence<DetectedBarcode>> detect(ImageBitmapSource image);
 };