Pass through readInfo.resultCode.

chrome/common/extensions/api/experimental.socket.idl

 // Copyright (c) 2012 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.
 
 // File-level comment to appease parser. Eventually this will not be necessary.
 
 [nodoc] namespace experimental.socket {
 
   // A socket event.
   dictionary SocketEvent {
     // A connectComplete event reports the result of a connect that blocked. A
     // writeComplete event reports the result of a write that blocked. A
     // dataRead event reports bytes that have arrived following a read call
     // that blocked.
     DOMString type;
 
-    // The result code, if the event type is writeComplete. The result code
-    // description matches that of <code>writeInfo.bytesWritten</code>.
+    // The result code, if the event type is dataRead or writeComplete. The
+    // result code description matches the resultCode field in the immediate
+    // callback for the call that led to this event.
     long? resultCode;
 
     // The data read, if the event type is dataRead.
     // TODO(miket): [instanceOf=ArrayBuffer]object? data;
     long[]? data;
 
     // Whether this is the final event that this socket will send.
     [nodoc] boolean isFinalEvent;
 
     // An ID unique to the calling function's context so that events can get
@@ skipping 16 matching lines @@
   dictionary CreateInfo {
     // The id of the newly created socket.
     long socketId;
   };
 
   callback CreateCallback = void (CreateInfo createInfo);
 
   callback ConnectCallback = void (long result);
 
   dictionary ReadInfo {
+    // The resultCode returned from the underlying read() call.
+    long resultCode;
+
     // The data received. Warning: will probably become a blob or other
     // appropriate binary-friendly type.
     // TODO(miket): [instanceOf=ArrayBuffer]object data;
     long[] data;
   };
 
   callback ReadCallback = void (ReadInfo readInfo);
 
   dictionary WriteInfo {
     // The number of bytes sent, or a negative error code.
@@ skipping 54 matching lines @@
                       WriteCallback callback);
   };
 
   interface Events {
     // Used to pass events back to the socket creator.
     // |event| : The event indicating socket status.
     static void onEvent(SocketEvent event);
   };
 
 };