Barcode/Face detection: reject requests in platforms where not implemented

third_party/WebKit/Source/modules/shapedetection/ShapeDetector.h

Index: third_party/WebKit/Source/modules/shapedetection/ShapeDetector.h
diff --git a/third_party/WebKit/Source/modules/shapedetection/ShapeDetector.h b/third_party/WebKit/Source/modules/shapedetection/ShapeDetector.h
index 20883f7396230754ea03f4b1288400889bc3bc7b..744007a8d8427dc3bf74b48b16217f40e533d5a3 100644
--- a/third_party/WebKit/Source/modules/shapedetection/ShapeDetector.h
+++ b/third_party/WebKit/Source/modules/shapedetection/ShapeDetector.h
@@ -57,10 +57,15 @@ class MODULES_EXPORT ShapeDetector
   void onDetectBarcodes(ScriptPromiseResolver*,
                         Vector<mojom::blink::BarcodeDetectionResultPtr>);
 
+  // Error handlers for use if mojo service doesn't connect.
+  void onFaceServiceConnectionError();
+  void onBarcodeServiceConnectionError();
+
   mojom::blink::FaceDetectionPtr m_faceService;
   mojom::blink::BarcodeDetectionPtr m_barcodeService;
 
-  HeapHashSet<Member<ScriptPromiseResolver>> m_serviceRequests;
+  HeapHashSet<Member<ScriptPromiseResolver>> m_faceServiceRequests;
+  HeapHashSet<Member<ScriptPromiseResolver>> m_barcodeServiceRequests;
 
  protected:
   mojom::blink::FaceDetectorOptionsPtr m_faceDetectorOptions;