Mojo JS bindings: switch most usage of "connection"/"router" module to "bindings".

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

Index: third_party/WebKit/LayoutTests/shapedetection/resources/mock-facedetection.js
diff --git a/third_party/WebKit/LayoutTests/shapedetection/resources/mock-facedetection.js b/third_party/WebKit/LayoutTests/shapedetection/resources/mock-facedetection.js
index c934619418786f85a4096d871e5d6aaa00408647..62220e829325e1faee3485f8f70e0ba81e72dd83 100644
--- a/third_party/WebKit/LayoutTests/shapedetection/resources/mock-facedetection.js
+++ b/third_party/WebKit/LayoutTests/shapedetection/resources/mock-facedetection.js
@@ -5,30 +5,22 @@ let mockFaceDetectionProviderReady = define(
   ['third_party/WebKit/public/platform/modules/shapedetection/facedetection.mojom',
    'third_party/WebKit/public/platform/modules/shapedetection/facedetection_provider.mojom',
    'mojo/public/js/bindings',
-   'mojo/public/js/connection',
    'mojo/public/js/core',
    'content/public/renderer/frame_interfaces',
-  ], (faceDetection, faceDetectionProvider, bindings, connection, mojo, interfaces) => {
+  ], (faceDetection, faceDetectionProvider, bindings, mojo, interfaces) => {
 
   class MockFaceDetectionProvider {
     constructor() {
+      this.bindingSet_ = new bindings.BindingSet(
+          faceDetectionProvider.FaceDetectionProvider);
+
       interfaces.addInterfaceOverrideForTesting(
           faceDetectionProvider.FaceDetectionProvider.name,
-          pipe => this.bindToPipe(pipe));
-    }
-
-    bindToPipe(pipe) {
-      this.stub_ = connection.bindHandleToStub(
-          pipe, faceDetectionProvider.FaceDetectionProvider);
-      bindings.StubBindings(this.stub_).delegate = this;
+          handle => this.bindingSet_.addBinding(this, handle));
     }
 
     createFaceDetection(request, options) {
-      this.mock_service_ = new MockFaceDetection(options);
-      this.mock_service_.stub_ = connection.bindHandleToStub(
-          request.handle, faceDetection.FaceDetection);
-      bindings.StubBindings(this.mock_service_.stub_).delegate =
-          this.mock_service_;
+      this.mock_service_ = new MockFaceDetection(request, options);
     }
 
     getFrameData() {
@@ -45,9 +37,11 @@ let mockFaceDetectionProviderReady = define(
   }
 
   class MockFaceDetection {
-    constructor(options) {
+    constructor(request, options) {
       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) {