Pepper: Add remaining Flash-specific C++ Pepper wrappers to ppapi_cpp.gypi.

ppapi/cpp/private/flash_udp_socket.h

-// Copyright (c) 2011 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_CPP_PRIVATE_FLASH_UDP_SOCKET_H_
-#define PPAPI_CPP_PRIVATE_FLASH_UDP_SOCKET_H_
-
-#include "ppapi/c/pp_stdint.h"
-#include "ppapi/c/private/ppb_flash_udp_socket.h"
-#include "ppapi/cpp/resource.h"
-
-namespace pp {
-
-class CompletionCallback;
-class Instance;
-
-namespace flash {
-
-class UDPSocket : public Resource {
- public:
-  explicit UDPSocket(Instance* instance);
-
-  int32_t Bind(const PP_NetAddress_Private* addr,
-               const CompletionCallback& callback);
-  int32_t RecvFrom(char* buffer,
-                   int32_t num_bytes,
-                   const CompletionCallback& callback);
-  bool GetRecvFromAddress(PP_NetAddress_Private* addr);
-  int32_t SendTo(const char* buffer,
-                 int32_t num_bytes,
-                 const PP_NetAddress_Private* addr,
-                 const CompletionCallback& callback);
-  void Close();
-};
-
-}  // namespace flash
-}  // namespace pp
-
-#endif  // PPAPI_CPP_PRIVATE_FLASH_UDP_SOCKET_H_
-