ShapeDetection: implement barcode detection, blink part

third_party/WebKit/LayoutTests/shapedetection/resources/mock-shapedetection.js

 "use strict";
 
 let mockShapeDetectionReady = define(
   'mockShapeDetection',
   ['third_party/WebKit/public/platform/modules/shapedetection/shapedetection.mojom',
    'mojo/public/js/bindings',
    'mojo/public/js/connection',
    'mojo/public/js/core',
    'content/public/renderer/frame_interfaces',
   ], (shapeDetection, bindings, connection, mojo, interfaces) => {
 
   class MockShapeDetection {
     constructor() {
       interfaces.addInterfaceOverrideForTesting(
           shapeDetection.ShapeDetection.name,
           pipe => this.bindToPipe(pipe));
     }
 
     bindToPipe(pipe) {
       this.stub_ = connection.bindHandleToStub(pipe,
                                                shapeDetection.ShapeDetection);
       bindings.StubBindings(this.stub_).delegate = this;
     }
 
-    detectFace(frame_data, width, height) {
+    detectFaces(frame_data, width, height) {
       let receivedStruct = mojo.mapBuffer(frame_data, 0, width*height*4, 0);
       this.buffer_data_ = new Uint32Array(receivedStruct.buffer);
       return Promise.resolve({
         result: {
           boundingBoxes: [
               { x : 1.0, y: 1.0, width: 100.0, height: 100.0 },
               { x : 2.0, y: 2.0, width: 200.0, height: 200.0 },
               { x : 3.0, y: 3.0, width: 300.0, height: 300.0 },
           ]
         }
       });
       mojo.unmapBuffer(receivedStruct.buffer);
     }
 
+    detectBarcodes(frame_data, width, height) {
+      let receivedStruct = mojo.mapBuffer(frame_data, 0, width*height*4, 0);
+      this.buffer_data_ = new Uint32Array(receivedStruct.buffer);
+      return Promise.resolve({
+        results: [
+          {
+            raw_value : "cats",
+            bounding_box: { x : 1.0, y: 1.0, width: 100.0, height: 100.0 },
+          },
+          {
+            raw_value : "dogs",
+            bounding_box: { x : 2.0, y: 2.0, width: 50.0, height: 50.0 },
+          },
+        ],
+      });
+      mojo.unmapBuffer(receivedStruct.buffer);
+    }
+
     getFrameData() {
       return this.buffer_data_;
     }
   }
   return new MockShapeDetection();
 });