Add ability to reuse address in chrome.sockets.udp

extensions/browser/api/socket/udp_socket.cc

 // Copyright 2014 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.
 
 #include "extensions/browser/api/socket/udp_socket.h"
 
 #include <algorithm>
 
 #include "base/callback_helpers.h"
 #include "base/lazy_instance.h"
@@ skipping 15 matching lines @@
 BrowserContextKeyedAPIFactory<ApiResourceManager<ResumableUDPSocket> >*
 ApiResourceManager<ResumableUDPSocket>::GetFactoryInstance() {
   return g_factory.Pointer();
 }
 
 UDPSocket::UDPSocket(const std::string& owner_extension_id)
     : Socket(owner_extension_id),
       socket_(net::DatagramSocket::DEFAULT_BIND,
               net::RandIntCallback(),
               NULL,
-              net::NetLog::Source()) {}
+              net::NetLog::Source()),
+      allow_address_reuse_(false) {}
 
 UDPSocket::~UDPSocket() { Disconnect(); }
 
 void UDPSocket::Connect(const net::AddressList& address,
                         const CompletionCallback& callback) {
   int result = net::ERR_CONNECTION_FAILED;
   do {
     if (is_connected_)
       break;
 
@@ skipping 20 matching lines @@
     return net::ERR_CONNECTION_FAILED;
 
   net::IPEndPoint ip_end_point;
   if (!StringAndPortToIPEndPoint(address, port, &ip_end_point))
     return net::ERR_INVALID_ARGUMENT;
 
   int result = socket_.Open(ip_end_point.GetFamily());
   if (result != net::OK)
     return result;
 
+  if (allow_address_reuse()) {
+    socket_.AllowAddressReuse();
+  }
+
   result = socket_.Bind(ip_end_point);
   if (result != net::OK)
     socket_.Close();
   return result;
 }
 
 void UDPSocket::Disconnect() {
   is_connected_ = false;
   socket_.Close();
   read_callback_.Reset();
@@ skipping 216 matching lines @@
 
 ResumableUDPSocket::ResumableUDPSocket(const std::string& owner_extension_id)
     : UDPSocket(owner_extension_id),
       persistent_(false),
       buffer_size_(0),
       paused_(false) {}
 
 bool ResumableUDPSocket::IsPersistent() const { return persistent(); }
 
 }  // namespace extensions