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 95bf7cbbf464dd5bd5481aba96014bbf12a89ef0..dbaea8e6055aa92d790e7eaa4f2dd3d67ba5bd32 100644
--- a/chrome/common/extensions/api/socket.idl
+++ b/chrome/common/extensions/api/socket.idl
@@ -19,12 +19,22 @@ 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;
@@ -123,8 +133,7 @@ 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.
@@ -134,6 +143,25 @@ namespace socket {
                      long port,
                      BindCallback callback);
 
+    // This method applies to TCP sockets only.
+    // Listens on the specified port that this socket was bound to.
+    // This effectively makes this a server socket and client socket functions
+    // can no longer be used on this socket.
+    // |socketId| : The socketId.
+    // |backlog| : Length of the socket's listen queue.
+    static void listen(long socketId,
+                       long backlog,
+                       ListenCallback callback);
+
+    // This method applies to TCP sockets only.
+    // Start waiting for connections on the server socket. The listen function
+    // must be called first.
+    // |socketId| : The socketId.
+    // |callback| : The callback is invoked when a new socket is accepted. The
+    // parameters contain information about the newly accepted socket.
+    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.