Adding MOJO_HANDLE_SIGNAL_PEER_CLOSED to be notified when a peer is closed.

mojo/public/js/core.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.
 
 // Module "mojo/public/js/core"
 //
 // Note: This file is for documentation purposes only. The code here is not
 // actually executed. The real module is implemented natively in Mojo.
 //
 // This module provides the JavaScript bindings for mojo/public/c/system/core.h.
@@ skipping 37 matching lines @@
 
 /**
  * MojoHandleSignals: Used to specify signals that can be waited on for a handle
  *(and which can be triggered), e.g., the ability to read or write to
  * the handle.
  * See core.h for more information.
  */
 var HANDLE_SIGNAL_NONE;
 var HANDLE_SIGNAL_READABLE;
 var HANDLE_SIGNAL_WRITABLE;
+var HANDLE_SIGNAL_PEER_CLOSED;
 
 /**
  * MojoCreateDataMessageOptions: Used to specify creation parameters for a data
  * pipe to |createDataMessage()|.
  * See core.h for more information.
  */
 dictionary MojoCreateDataMessageOptions {
   MojoCreateDataMessageOptionsFlags flags;  // See below.
 };
 
@@ skipping 153 matching lines @@
  * return codes.
  *
  * @param {MojoHandle} handle A consumerHandle returned by createDataPipe.
  * @param {MojoReadDataFlags} flags Flags.
  * @return {object} An object of the form {
  *     result,  // |RESULT_OK| on success, error code otherwise.
  *     buffer,  // An ArrayBufferView of the data read (only on success).
  *   }
  */
 function readData(handle, flags) { [native code] }