diff -r 000000000000 -r 6474c204b198 dom/network/interfaces/nsITCPSocketChild.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/network/interfaces/nsITCPSocketChild.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,47 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "domstubs.idl"
+
+interface nsITCPSocketInternal;
+interface nsIDOMWindow;
+
+// Interface to allow the content process socket to reach the IPC bridge.
+// Implemented in C++ as TCPSocketChild, referenced as _socketBridge in TCPSocket.js
+[scriptable, uuid(292ebb3a-beac-4e06-88b0-b5b4e88ebd1c)]
+interface nsITCPSocketChild : nsISupports
+{
+  // Tell the chrome process to open a corresponding connection with the given parameters
+  [implicit_jscontext]
+  void sendOpen(in nsITCPSocketInternal socket, in DOMString host,
+                in unsigned short port, in boolean ssl, in DOMString binaryType,
+                in nsIDOMWindow window, in jsval windowVal);
+
+  // Tell the chrome process to perform send and update the tracking number.
+  [implicit_jscontext] 
+  void sendSend(in jsval data, in unsigned long byteOffset,
+                in unsigned long byteLength, in unsigned long trackingNumber);
+
+  // Tell the chrome process to perform equivalent operations to all following methods
+  void sendResume();
+  void sendSuspend();
+  void sendClose();
+  void sendStartTLS();
+
+  /**
+   * Initialize the TCP socket on the child side for IPC. It is called from the child side,
+   * which is generated in receiving a notification of accepting any open request
+   * on the parent side. We use single implementation that works on a child process 
+   * as well as in the single process model.
+   *
+   * @param socket
+   *        The TCP socket on the child side.
+   *        This instance is connected with the child IPC side of the IPC bridge.
+   * @param windowVal
+   *        The window object on the child side to create data
+   *        as "jsval" for deserialization.
+   */
+  [implicit_jscontext]
+  void setSocketAndWindow(in nsITCPSocketInternal socket, in jsval windowVal);
+};