Initial work for UDP Pepper API

ppapi/cpp/private/flash_udp_socket.h

Index: ppapi/cpp/private/flash_udp_socket.h
diff --git a/ppapi/cpp/private/flash_udp_socket.h b/ppapi/cpp/private/flash_udp_socket.h
new file mode 100644
index 0000000000000000000000000000000000000000..e472c00774b16e12e9646ad478239dd9a4ecc26e
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+++ b/ppapi/cpp/private/flash_udp_socket.h
@@ -0,0 +1,40 @@
+// 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_Flash_NetAddress* addr,
+               const CompletionCallback& callback);
+  int32_t RecvFrom(char* buffer,
+                   int32_t num_bytes,
+                   const CompletionCallback& callback);
+  bool GetRecvFromAddress(PP_Flash_NetAddress* addr);
+  int32_t SendTo(const char* buffer,
+                 int32_t num_bytes,
+                 const PP_Flash_NetAddress* addr,
+                 const CompletionCallback& callback);
+  void Close();
+};
+
+}  // namespace flash
+}  // namespace pp
+
+#endif  // PPAPI_CPP_PRIVATE_FLASH_UDP_SOCKET_H_
+