Re-land r109086: Add private Pepper API for dealing with PP_Flash_NetAddress.

ppapi/cpp/private/flash_net_address.h

Index: ppapi/cpp/private/flash_net_address.h
diff --git a/ppapi/cpp/private/flash_net_address.h b/ppapi/cpp/private/flash_net_address.h
new file mode 100644
index 0000000000000000000000000000000000000000..f08cb528f17fde4426fefbae0dfd53b662a3cc4a
--- /dev/null
+++ b/ppapi/cpp/private/flash_net_address.h
@@ -0,0 +1,38 @@
+// 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.
+
+// TODO(viettrungluu): This (and the .cc file) contain C++ wrappers for things
+// in ppapi/c/private/ppb_flash_net_address.h. This is currently not used in
+// (or even compiled with) Chromium.
+
+#ifndef PPAPI_CPP_PRIVATE_FLASH_NET_ADDRESS_H_
+#define PPAPI_CPP_PRIVATE_FLASH_NET_ADDRESS_H_
+
+#include <string>
+
+#include "ppapi/c/pp_stdint.h"
+
+struct PP_Flash_NetAddress;
+
+namespace pp {
+namespace flash {
+
+class NetAddress {
+ public:
+  static bool AreEqual(const PP_Flash_NetAddress& addr1,
+                       const PP_Flash_NetAddress& addr2);
+  static bool AreHostsEqual(const PP_Flash_NetAddress& addr1,
+                            const PP_Flash_NetAddress& addr2);
+  static std::string Describe(const PP_Flash_NetAddress& addr,
+                              bool include_port);
+  static bool ReplacePort(const PP_Flash_NetAddress& addr_in,
+                          uint16_t port,
+                          PP_Flash_NetAddress* addr_out);
+  static void GetAnyAddress(bool is_ipv6, PP_Flash_NetAddress* addr);
+};
+
+}  // namespace flash
+}  // namespace pp
+
+#endif  // PPAPI_CPP_PRIVATE_FLASH_NET_ADDRESS_H_