Shape Detection: add idl and mojom for face landmarks and wire for Mac

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

 "use strict";
 
 let mockFaceDetectionProviderReady = define(
   'mockFaceDetectionProvider',
   ['services/shape_detection/public/interfaces/facedetection.mojom',
    'services/shape_detection/public/interfaces/facedetection_provider.mojom',
    'mojo/public/js/bindings',
    'mojo/public/js/core',
    'content/public/renderer/interfaces',
   ], (faceDetection, faceDetectionProvider, bindings, mojo, interfaces) => {
@@ skipping 30 matching lines @@
       this.maxDetectedFaces_ = options.max_detected_faces;
       this.fastMode_ = options.fast_mode;
       this.binding_ = new bindings.Binding(faceDetection.FaceDetection, this,
                                            request);
     }
 
     detect(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: {
-          bounding_boxes: [
-            { 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 },
-          ]
-        }
+        results: [
+          {
+            bounding_box: {x: 1.0, y: 1.0, width: 100.0, height: 100.0},
+            landmarks: [{
+              type: faceDetection.LandmarkType.EYE,
+              location: {x: 4.0, y: 5.0}
+            }]
+          },
+          {
+            bounding_box: {x: 2.0, y: 2.0, width: 200.0, height: 200.0},
+            landmarks: []
+          },
+          {
+            bounding_box: {x: 3.0, y: 3.0, width: 300.0, height: 300.0},
+            landmarks: []
+          },
+        ]
       });
       mojo.unmapBuffer(receivedStruct.buffer);
     }
   }
   return new MockFaceDetectionProvider();
 });