Implement chrome.socket.bind/listen/accept for TCP server socket.

chrome/common/extensions/api/socket.idl

Index: chrome/common/extensions/api/socket.idl
diff --git a/chrome/common/extensions/api/socket.idl b/chrome/common/extensions/api/socket.idl
index d417d9b227053fb5842ee4f622280976b5de8552..2bc944e0e39ed8e65d61a1f33f26ede4b4af1a43 100644
--- a/chrome/common/extensions/api/socket.idl
+++ b/chrome/common/extensions/api/socket.idl
@@ -17,12 +17,22 @@ namespace socket {
     long socketId;
   };
 
+  dictionary AcceptInfo {
+    // The id of the accepted socket.
+    long socketId;
+    long resultCode;
+  };
+
   callback CreateCallback = void (CreateInfo createInfo);
 
   callback ConnectCallback = void (long result);
 
   callback BindCallback = void (long result);
 
+  callback ListenCallback = void (long result);
+
+  callback AcceptCallback = void (AcceptInfo acceptInfo);
+
   dictionary ReadInfo {
     // The resultCode returned from the underlying read() call.
     long resultCode;
@@ -132,8 +142,7 @@ namespace socket {
                         long port,
                         ConnectCallback callback);
 
-    // Binds the local address for socket. Currently, it does not support
-    // TCP socket.
+    // Binds the local address for socket.
     // |socketId| : The socketId.
     // |address| : The address of the local machine.
     // |port| : The port of the local machine.
@@ -143,6 +152,23 @@ namespace socket {
                      long port,
                      BindCallback callback);
 
+    // This method applies to TCP sockets only.
+    // Listens for connections on the specified port that this socket was bound
+    // to. This effectively makes this a server socket and client socket
+    // functions (connect, read, write) can no longer be used on this socket.
+    // |socketId| : The socketId.
+    // |backlog| : Length of the socket's accept queue.
+    static void listen(long socketId,
+                       long backlog,
+                       ListenCallback callback);
+
+    // This method applies to TCP sockets only.
+    // Starts waiting for connections on the listening server socket.
+    // |socketId| : The socketId.
+    // |callback| : The callback is invoked when a new socket is accepted.
+    static void accept(long socketId,
+                       AcceptCallback callback);
+
     // Disconnects the socket. For UDP sockets, <code>disconnect</code> is a
     // non-operation but is safe to call.
     // |socketId| : The socketId.