Mojo JS bindings: update the new bindings with the associated interface feature.

mojo/public/js/new_bindings/lib/pipe_control_message_proxy.js

Index: mojo/public/js/new_bindings/lib/pipe_control_message_proxy.js
diff --git a/mojo/public/js/new_bindings/lib/pipe_control_message_proxy.js b/mojo/public/js/new_bindings/lib/pipe_control_message_proxy.js
new file mode 100644
index 0000000000000000000000000000000000000000..55cf151d0f0851502a924c71e01c9d661e314a88
--- /dev/null
+++ b/mojo/public/js/new_bindings/lib/pipe_control_message_proxy.js
@@ -0,0 +1,50 @@
+// Copyright 2017 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.
+
+(function() {
+  var internal = mojo.internal;
+
+  function constructRunOrClosePipeMessage(runOrClosePipeInput) {
+    var runOrClosePipeMessageParams = new
+        mojo.pipeControl2.RunOrClosePipeMessageParams();
+    runOrClosePipeMessageParams.input = runOrClosePipeInput;
+
+    var messageName = mojo.pipeControl2.kRunOrClosePipeMessageId;
+    var payloadSize =
+        mojo.pipeControl2.RunOrClosePipeMessageParams.encodedSize;
+
+    var builder = new internal.MessageV0Builder(messageName, payloadSize);
+    builder.encodeStruct(mojo.pipeControl2.RunOrClosePipeMessageParams,
+                         runOrClosePipeMessageParams);
+    var message = builder.finish();
+    message.setInterfaceId(internal.kInvalidInterfaceId);
+    return message;
+  }
+
+  function PipeControlMessageProxy(receiver) {
+    this.receiver_ = receiver;
+  }
+
+  PipeControlMessageProxy.prototype.notifyPeerEndpointClosed = function(
+      interfaceId, reason) {
+    var message = this.constructPeerEndpointClosedMessage(interfaceId, reason);
+    this.receiver_.accept(message);
+  };
+
+  PipeControlMessageProxy.prototype.constructPeerEndpointClosedMessage =
+      function(interfaceId, reason) {
+    var event = new mojo.pipeControl2.PeerAssociatedEndpointClosedEvent();
+    event.id = interfaceId;
+    if (reason) {
+      event.disconnectReason = new mojo.pipeControl2.DisconnectReason({
+          customReason: reason.customReason,
+          description: reason.description});
+    }
+    var runOrClosePipeInput = new mojo.pipeControl2.RunOrClosePipeInput();
+    runOrClosePipeInput.peerAssociatedEndpointClosedEvent = event;
+    return constructRunOrClosePipeMessage(runOrClosePipeInput);
+  };
+
+  internal.PipeControlMessageProxy = PipeControlMessageProxy;
+})();