PPB_TCPSocket: add support for TCP server socket operations.

ppapi/thunk/ppb_tcp_socket_api.h

 // Copyright 2013 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.
 
 #ifndef PPAPI_THUNK_PPB_TCP_SOCKET_API_H_
 #define PPAPI_THUNK_PPB_TCP_SOCKET_API_H_
 
 #include "base/memory/ref_counted.h"
 #include "ppapi/c/ppb_tcp_socket.h"
 #include "ppapi/thunk/ppapi_thunk_export.h"
 
 namespace ppapi {
 
 class TrackedCallback;
 
 namespace thunk {
 
 class PPAPI_THUNK_EXPORT PPB_TCPSocket_API {
  public:
   virtual ~PPB_TCPSocket_API() {}
 
+  virtual int32_t Bind(PP_Resource addr,
+                       scoped_refptr<TrackedCallback> callback) = 0;
   virtual int32_t Connect(PP_Resource addr,
                           scoped_refptr<TrackedCallback> callback) = 0;
   virtual PP_Resource GetLocalAddress() = 0;
   virtual PP_Resource GetRemoteAddress() = 0;
   virtual int32_t Read(char* buffer,
                        int32_t bytes_to_read,
                        scoped_refptr<TrackedCallback> callback) = 0;
   virtual int32_t Write(const char* buffer,
                         int32_t bytes_to_write,
                         scoped_refptr<TrackedCallback> callback) = 0;
+  virtual int32_t Listen(int32_t backlog,
+                         scoped_refptr<TrackedCallback> callback) = 0;
+  virtual int32_t Accept(PP_Resource* accepted_tcp_socket,
+                         scoped_refptr<TrackedCallback> callback) = 0;
   virtual void Close() = 0;
   virtual int32_t SetOption(PP_TCPSocket_Option name,
                             const PP_Var& value,
                             scoped_refptr<TrackedCallback> callback) = 0;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_PPB_TCP_SOCKET_API_H_