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

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

 "use strict";
 
 let mockBarcodeDetectionReady = define(
   'mockBarcodeDetection',
   ['third_party/WebKit/public/platform/modules/shapedetection/barcodedetection.mojom',
    'mojo/public/js/bindings',
-   'mojo/public/js/connection',
    'mojo/public/js/core',
    'content/public/renderer/frame_interfaces',
-  ], (barcodeDetection, bindings, connection, mojo, interfaces) => {
+  ], (barcodeDetection, bindings, mojo, interfaces) => {
 
   class MockBarcodeDetection {
     constructor() {
+      this.bindingSet_ = new bindings.BindingSet(
+          barcodeDetection.BarcodeDetection);
+
       interfaces.addInterfaceOverrideForTesting(
           barcodeDetection.BarcodeDetection.name,
-          pipe => this.bindToPipe(pipe));
-    }
-
-    bindToPipe(pipe) {
-      this.stub_ = connection.bindHandleToStub(pipe,
-                                               barcodeDetection.BarcodeDetection);
-      bindings.StubBindings(this.stub_).delegate = this;
+          handle => this.bindingSet_.addBinding(this, handle));
     }
 
     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({
         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 MockBarcodeDetection();
 });