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

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

 "use strict";
 
 let mockImageCaptureReady = define(
   'mockImageCapture',
   ['media/capture/mojo/image_capture.mojom',
    'mojo/public/js/bindings',
-   'mojo/public/js/connection',
    'content/public/renderer/interfaces',
-  ], (imageCapture, bindings, connection, interfaces) => {
+  ], (imageCapture, bindings, interfaces) => {
 
   class MockImageCapture {
     constructor() {
       interfaces.addInterfaceOverrideForTesting(
           imageCapture.ImageCapture.name,
-          pipe => this.bindToPipe(pipe));
+          handle => this.bindingSet_.addBinding(this, handle));
 
       this.capabilities_ = { capabilities : {
           iso : { min : 100.0, max : 12000.0, current : 400.0, step : 1.0 },
           height : { min : 240.0, max : 2448.0, current : 240.0, step : 2.0 },
           width : { min : 320.0, max : 3264.0, current : 320.0, step : 3.0 },
           zoom : { min : 0.0, max : 10.0, current : 5.0, step : 5.0 },
           focus_mode : imageCapture.MeteringMode.MANUAL,
           exposure_mode : imageCapture.MeteringMode.SINGLE_SHOT,
           exposure_compensation :
               { min : -200.0, max : 200.0, current : 33.0, step : 33.0},
           white_balance_mode : imageCapture.MeteringMode.CONTINUOUS,
           fill_light_mode : imageCapture.FillLightMode.AUTO,
           red_eye_reduction : true,
           color_temperature :
               { min : 2500.0, max : 6500.0, current : 6000.0, step : 1000.0 },
           brightness : { min : 1.0, max : 10.0, current : 5.0, step : 1.0 },
           contrast : { min : 2.0, max : 9.0, current : 5.0, step : 1.0 },
           saturation : { min : 3.0, max : 8.0, current : 6.0, step : 1.0 },
           sharpness : { min : 4.0, max : 7.0, current : 7.0, step : 1.0 },
       }};
       this.settings_ = null;
-    }
-
-    bindToPipe(pipe) {
-      this.stub_ = connection.bindHandleToStub(pipe, imageCapture.ImageCapture);
-      bindings.StubBindings(this.stub_).delegate = this;
+      this.bindingSet_ = new bindings.BindingSet(imageCapture.ImageCapture);
     }
 
     getCapabilities(source_id) {
       return Promise.resolve(this.capabilities_);
     }
 
     setOptions(source_id, settings) {
       this.settings_ = settings;
       return Promise.resolve({ success : true });
     }
 
     takePhoto(source_id) {
       return Promise.resolve({ blob : { mime_type : 'image/cat',
                                         data : new Array(2) } });
     }
 
     capabilities() {
       return this.capabilities_.capabilities;
     }
 
     options() {
       return this.settings_;
     }
 
   }
   return new MockImageCapture();
 });