Mojo JS Bindings: Add support for closing Proxy and Stub connections

mojo/public/js/bindings.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 define("mojo/public/js/bindings", [
   "mojo/public/js/router",
-], function(router) {
+  "mojo/public/js/core",
+], function(router, core) {
 
   var Router = router.Router;
 
   var kProxyProperties = Symbol("proxyProperties");
   var kStubProperties = Symbol("stubProperties");
 
   // Public proxy class properties that are managed at runtime by the JS
   // bindings. See ProxyBindings below.
   function ProxyProperties(receiver) {
     this.receiver = receiver;
   }
 
   // TODO(hansmuller): remove then after 'Client=' has been removed from Mojom.
   ProxyProperties.prototype.getLocalDelegate = function() {
     return this.local && StubBindings(this.local).delegate;
   }
 
   // TODO(hansmuller): remove then after 'Client=' has been removed from Mojom.
   ProxyProperties.prototype.setLocalDelegate = function(impl) {
     if (this.local)
       StubBindings(this.local).delegate = impl;
     else
       throw new Error("no stub object");
   }
 
+  function connectionHandle(connection) {
+    return connection &&
+        connection.router &&
+        connection.router.connector_ &&
+        connection.router.connector_.handle_;
+  }
+
+  ProxyProperties.prototype.close = function() {
+    var handle = connectionHandle(this.connection);
+    if (handle)
+      core.close(handle);
+  }
+
   // Public stub class properties that are managed at runtime by the JS
   // bindings. See StubBindings below.
   function StubProperties(delegate) {
     this.delegate = delegate;
   }
 
+  StubProperties.prototype.close = function() {
+    var handle = connectionHandle(this.connection);
+    if (handle)
+      core.close(handle);
+  }
+
   // The base class for generated proxy classes.
   function ProxyBase(receiver) {
     this[kProxyProperties] = new ProxyProperties(receiver);
 
     // TODO(hansmuller): Temporary, for Chrome backwards compatibility.
     if (receiver instanceof Router)
       this.receiver_ = receiver;
   }
 
   // The base class for generated stub classes.
@@ skipping 50 matching lines @@
 
   var exports = {};
   exports.EmptyProxy = ProxyBase;
   exports.EmptyStub = StubBase;
   exports.ProxyBase = ProxyBase;
   exports.ProxyBindings = ProxyBindings;
   exports.StubBase = StubBase;
   exports.StubBindings = StubBindings;
   return exports;
 });