Add bind(), recvFrom(), sendTo() for UDP socket.

BUG=None
TEST=None

Review URL: http://codereview.chromium.org/10134008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@133935 0039d316-1c4b-4281-b951-d872f2087c98

18 files changed, 493 insertions, 259 deletions

diff --git a/chrome/browser/extensions/api/api_resource_event_notifier.cc b/chrome/browser/extensions/api/api_resource_event_notifier.cc
index 6b09023..000ace5 100644
--- a/chrome/browser/extensions/api/api_resource_event_notifier.cc
+++ b/chrome/browser/extensions/api/api_resource_event_notifier.cc
@@ -31,6 +31,8 @@ const char kIsFinalEventKey[] = "isFinalEvent";
 
 const char kResultCodeKey[] = "resultCode";
 const char kDataKey[] = "data";
+const char kAddressKey[] = "address";
+const char kPortKey[] = "port";
 
 APIResourceEventNotifier::APIResourceEventNotifier(
     ExtensionEventRouter* router,
@@ -51,7 +53,9 @@ void APIResourceEventNotifier::OnConnectComplete(int result_code) {
 }
 
 void APIResourceEventNotifier::OnDataRead(int result_code,
-                                          base::ListValue* data) {
+                                          base::ListValue* data,
+                                          const std::string& address,
+                                          int port) {
   // Do we have a destination for this event? There will be one if a source id
   // was injected by the request handler for the resource's create method in
   // schema_generated_bindings.js, which will in turn be the case if the caller
@@ -65,6 +69,8 @@ void APIResourceEventNotifier::OnDataRead(int result_code,
       API_RESOURCE_EVENT_DATA_READ);
   event->SetInteger(kResultCodeKey, result_code);
   event->Set(kDataKey, data);
+  event->SetString(kAddressKey, address);
+  event->SetInteger(kPortKey, port);
   DispatchEvent(event);
 }
 
diff --git a/chrome/browser/extensions/api/api_resource_event_notifier.h b/chrome/browser/extensions/api/api_resource_event_notifier.h
index eb16a01..4ef8e2e 100644
--- a/chrome/browser/extensions/api/api_resource_event_notifier.h
+++ b/chrome/browser/extensions/api/api_resource_event_notifier.h
@@ -53,7 +53,10 @@ class APIResourceEventNotifier
   virtual void OnConnectComplete(int result_code);
 
   // Takes ownership of data.
-  virtual void OnDataRead(int result_code, base::ListValue* data);
+  virtual void OnDataRead(int result_code,
+                          base::ListValue* data,
+                          const std::string& address,
+                          int port);
 
   virtual void OnWriteComplete(int result_code);
 
diff --git a/chrome/browser/extensions/api/socket/socket.cc b/chrome/browser/extensions/api/socket/socket.cc
index 60e57b7..37f8bab 100644
--- a/chrome/browser/extensions/api/socket/socket.cc
+++ b/chrome/browser/extensions/api/socket/socket.cc
@@ -6,6 +6,7 @@
 
 #include "base/bind.h"
 #include "chrome/browser/extensions/api/api_resource_event_notifier.h"
+#include "net/base/address_list.h"
 #include "net/base/io_buffer.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_errors.h"
@@ -13,11 +14,8 @@
 
 namespace extensions {
 
-Socket::Socket(const std::string& address, int port,
-               APIResourceEventNotifier* event_notifier)
+Socket::Socket(APIResourceEventNotifier* event_notifier)
     : APIResource(APIResource::SocketResource, event_notifier),
-      address_(address),
-      port_(port),
       is_connected_(false) {
 }
 
@@ -26,7 +24,9 @@ Socket::~Socket() {
   DCHECK(!is_connected_);
 }
 
-void Socket::OnDataRead(scoped_refptr<net::IOBuffer> io_buffer, int result) {
+void Socket::OnDataRead(scoped_refptr<net::IOBuffer> io_buffer,
+                        net::IPEndPoint* address,
+                        int result) {
   // OnDataRead will take ownership of data_value.
   ListValue* data_value = new ListValue();
   if (result >= 0) {
@@ -36,24 +36,59 @@ void Socket::OnDataRead(scoped_refptr<net::IOBuffer> io_buffer, int result) {
       data_value->Set(i, Value::CreateIntegerValue(io_buffer_start[i]));
     }
   }
-  event_notifier()->OnDataRead(result, data_value);
+
+  std::string ip_address_str;
+  int port = 0;
+  if (address)
+    IPEndPointToStringAndPort(*address, &ip_address_str, &port);
+  event_notifier()->OnDataRead(result, data_value, ip_address_str, port);
 }
 
 void Socket::OnWriteComplete(int result) {
   event_notifier()->OnWriteComplete(result);
 }
 
-int Socket::Read(scoped_refptr<net::IOBuffer> io_buffer, int io_buffer_len) {
-  return socket()->Read(
-      io_buffer.get(),
-      io_buffer_len,
-      base::Bind(&Socket::OnDataRead, base::Unretained(this), io_buffer));
+// static
+bool Socket::StringAndPortToIPEndPoint(const std::string& ip_address_str,
+                                       int port,
+                                       net::IPEndPoint* ip_end_point) {
+  DCHECK(ip_end_point);
+  net::IPAddressNumber ip_number;
+  if (!net::ParseIPLiteralToNumber(ip_address_str, &ip_number))
+    return false;
+
+  *ip_end_point = net::IPEndPoint(ip_number, port);
+  return true;
+}
+
+bool Socket::StringAndPortToAddressList(const std::string& ip_address_str,
+                                        int port,
+                                        net::AddressList* address_list) {
+  DCHECK(address_list);
+  net::IPAddressNumber ip_number;
+  if (!net::ParseIPLiteralToNumber(ip_address_str, &ip_number))
+    return false;
+
+  *address_list = net::AddressList::CreateFromIPAddress(ip_number, port);
+  return true;
 }
 
-int Socket::Write(scoped_refptr<net::IOBuffer> io_buffer, int byte_count) {
-  return socket()->Write(
-      io_buffer.get(), byte_count,
-      base::Bind(&Socket::OnWriteComplete, base::Unretained(this)));
+void Socket::IPEndPointToStringAndPort(const net::IPEndPoint& address,
+                                       std::string* ip_address_str,
+                                       int* port) {
+  DCHECK(ip_address_str);
+  DCHECK(port);
+  struct sockaddr_storage addr;
+  size_t addr_len = sizeof(addr);
+  if (address.ToSockAddr(reinterpret_cast<struct sockaddr*>(&addr),
+                         &addr_len)) {
+    *ip_address_str = net::NetAddressToString(
+        reinterpret_cast<struct sockaddr*>(&addr), addr_len);
+    *port = address.port();
+  } else {
+    *ip_address_str = "";
+    *port = 0;
+  }
 }
 
 }  // namespace extensions
diff --git a/chrome/browser/extensions/api/socket/socket.h b/chrome/browser/extensions/api/socket/socket.h
index eb9d83e..d91a950 100644
--- a/chrome/browser/extensions/api/socket/socket.h
+++ b/chrome/browser/extensions/api/socket/socket.h
@@ -13,6 +13,8 @@
 #include "net/base/io_buffer.h"
 
 namespace net {
+class AddressList;
+class IPEndPoint;
 class Socket;
 }
 
@@ -24,31 +26,50 @@ class Socket : public APIResource {
  public:
   virtual ~Socket();
 
-  // Returns true iff the socket was able to properly initialize itself.
-  virtual bool IsValid() = 0;
-
   // Returns net::OK if successful, or an error code otherwise.
-  virtual int Connect() = 0;
+  virtual int Connect(const std::string& address, int port) = 0;
   virtual void Disconnect() = 0;
 
+  virtual int Bind(const std::string& address, int port) = 0;
+
   // Returns the number of bytes read into the buffer, or a negative number if
   // an error occurred.
-  virtual int Read(scoped_refptr<net::IOBuffer> io_buffer, int io_buffer_size);
+  virtual int Read(scoped_refptr<net::IOBuffer> io_buffer,
+                   int io_buffer_size) = 0;
 
   // Returns the number of bytes successfully written, or a negative error
   // code. Note that ERR_IO_PENDING means that the operation blocked, in which
   // case |event_notifier| (supplied at socket creation) will eventually be
   // called with the final result (again, either a nonnegative number of bytes
   // written, or a negative error).
-  virtual int Write(scoped_refptr<net::IOBuffer> io_buffer, int bytes);
+  virtual int Write(scoped_refptr<net::IOBuffer> io_buffer,
+                    int byte_count) = 0;
 
-  virtual void OnDataRead(scoped_refptr<net::IOBuffer> io_buffer, int result);
+  virtual int RecvFrom(scoped_refptr<net::IOBuffer> io_buffer,
+                       int io_buffer_size,
+                       net::IPEndPoint *address) = 0;
+  virtual int SendTo(scoped_refptr<net::IOBuffer> io_buffer,
+                     int byte_count,
+                     const std::string& address,
+                     int port) = 0;
+
+  virtual void OnDataRead(scoped_refptr<net::IOBuffer> io_buffer,
+                          net::IPEndPoint *address,
+                          int result);
   virtual void OnWriteComplete(int result);
 
+  static bool StringAndPortToAddressList(const std::string& ip_address_str,
+                                         int port,
+                                         net::AddressList* address_list);
+  static bool StringAndPortToIPEndPoint(const std::string& ip_address_str,
+                                        int port,
+                                        net::IPEndPoint* ip_end_point);
+  static void IPEndPointToStringAndPort(const net::IPEndPoint& address,
+                                        std::string* ip_address_str,
+                                        int* port);
+
  protected:
-  Socket(const std::string& address, int port,
-         APIResourceEventNotifier* event_notifier);
-  virtual net::Socket* socket() = 0;
+  explicit Socket(APIResourceEventNotifier* event_notifier);
 
   const std::string address_;
   int port_;
diff --git a/chrome/browser/extensions/api/socket/socket_api.cc b/chrome/browser/extensions/api/socket/socket_api.cc
index 979f42c..c8409aa 100644
--- a/chrome/browser/extensions/api/socket/socket_api.cc
+++ b/chrome/browser/extensions/api/socket/socket_api.cc
@@ -11,9 +11,12 @@
 #include "chrome/browser/extensions/api/socket/udp_socket.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "net/base/io_buffer.h"
+#include "net/base/ip_endpoint.h"
 
 namespace extensions {
 
+const char kAddressKey[] = "address";
+const char kPortKey[] = "port";
 const char kBytesWrittenKey[] = "bytesWritten";
 const char kDataKey[] = "data";
 const char kResultCodeKey[] = "resultCode";
@@ -29,14 +32,7 @@ SocketCreateFunction::SocketCreateFunction()
 
 bool SocketCreateFunction::Prepare() {
   std::string socket_type_string;
-  size_t argument_position = 0;
-  EXTENSION_FUNCTION_VALIDATE(args_->GetString(argument_position++,
-                                               &socket_type_string));
-  EXTENSION_FUNCTION_VALIDATE(args_->GetString(argument_position++,
-                                               &address_));
-  EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(argument_position++,
-                                                &port_));
-
+  EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &socket_type_string));
   if (socket_type_string == kTCPOption)
     socket_type_ = kSocketTypeTCP;
   else if (socket_type_string == kUDPOption)
@@ -44,7 +40,7 @@ bool SocketCreateFunction::Prepare() {
   else
     return false;
 
-  src_id_ = ExtractSrcId(argument_position);
+  src_id_ = ExtractSrcId(1);
   event_notifier_ = CreateEventNotifier(src_id_);
 
   return true;
@@ -53,12 +49,11 @@ bool SocketCreateFunction::Prepare() {
 void SocketCreateFunction::Work() {
   Socket* socket = NULL;
   if (socket_type_ == kSocketTypeTCP) {
-    socket = new TCPSocket(address_, port_, event_notifier_);
+    socket = new TCPSocket(event_notifier_);
   } else {
-    socket = new UDPSocket(address_, port_, event_notifier_);
+    socket = new UDPSocket(event_notifier_);
   }
   DCHECK(socket);
-  DCHECK(socket->IsValid());
 
   DictionaryValue* result = new DictionaryValue();
 
@@ -85,6 +80,8 @@ bool SocketDestroyFunction::Respond() {
 
 bool SocketConnectFunction::Prepare() {
   EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(0, &socket_id_));
+  EXTENSION_FUNCTION_VALIDATE(args_->GetString(1, &address_));
+  EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(2, &port_));
   return true;
 }
 
@@ -92,7 +89,7 @@ void SocketConnectFunction::Work() {
   int result = -1;
   Socket* socket = controller()->GetSocket(socket_id_);
   if (socket)
-    result = socket->Connect();
+    result = socket->Connect(address_, port_);
   else
     error_ = kSocketNotFoundError;
   result_.reset(Value::CreateIntegerValue(result));
@@ -120,6 +117,29 @@ bool SocketDisconnectFunction::Respond() {
   return true;
 }
 
+
+bool SocketBindFunction::Prepare() {
+  EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(0, &socket_id_));
+  EXTENSION_FUNCTION_VALIDATE(args_->GetString(1, &address_));
+  EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(2, &port_));
+  return true;
+}
+
+void SocketBindFunction::Work() {
+  int result = -1;
+  Socket* socket = controller()->GetSocket(socket_id_);
+  if (socket)
+    result = socket->Bind(address_, port_);
+  else
+    error_ = kSocketNotFoundError;
+
+  result_.reset(Value::CreateIntegerValue(result));
+}
+
+bool SocketBindFunction::Respond() {
+  return true;
+}
+
 bool SocketReadFunction::Prepare() {
   EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(0, &socket_id_));
   return true;
@@ -204,4 +224,99 @@ bool SocketWriteFunction::Respond() {
   return true;
 }
 
+bool SocketRecvFromFunction::Prepare() {
+  EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(0, &socket_id_));
+  return true;
+}
+
+void SocketRecvFromFunction::Work() {
+  // TODO(miket): this is an arbitrary number. Can we come up with one that
+  // makes sense?
+  const int buffer_len = 2048;
+  scoped_refptr<net::IOBuffer> io_buffer(new net::IOBuffer(buffer_len));
+  Socket* socket = controller()->GetSocket(socket_id_);
+  int bytes_read = -1;
+  std::string ip_address_str;
+  int port = 0;
+  if (socket) {
+    bytes_read = socket->RecvFrom(io_buffer, buffer_len, &address_);
+  }
+
+  // TODO(miket): the buffer-to-array functionality appears twice, once here
+  // and once in socket.cc. When serial etc. is converted over, it'll appear
+  // there, too. What's a good single place for it to live? Keep in mind that
+  // this is short-term code, to be replaced with ArrayBuffer code.
+  DictionaryValue* result = new DictionaryValue();
+  ListValue* data_value = new ListValue();
+  if (bytes_read > 0) {
+    Socket::IPEndPointToStringAndPort(address_, &ip_address_str, &port);
+    size_t bytes_size = static_cast<size_t>(bytes_read);
+    const char* io_buffer_start = io_buffer->data();
+    for (size_t i = 0; i < bytes_size; ++i) {
+      data_value->Set(i, Value::CreateIntegerValue(io_buffer_start[i]));
+    }
+  }
+
+  result->SetInteger(kResultCodeKey, bytes_read);
+  result->Set(kDataKey, data_value);
+  result->SetString(kAddressKey, ip_address_str);
+  result->SetInteger(kPortKey, port);
+  result_.reset(result);
+}
+
+bool SocketRecvFromFunction::Respond() {
+  return true;
+}
+
+SocketSendToFunction::SocketSendToFunction()
+    : socket_id_(0),
+      io_buffer_(NULL) {
+}
+
+SocketSendToFunction::~SocketSendToFunction() {
+}
+
+bool SocketSendToFunction::Prepare() {
+  EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(0, &socket_id_));
+  base::ListValue *data_list_value;
+  EXTENSION_FUNCTION_VALIDATE(args_->GetList(1, &data_list_value));
+  EXTENSION_FUNCTION_VALIDATE(args_->GetString(2, &address_));
+  EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(3, &port_));
+
+  size_t size = data_list_value->GetSize();
+  if (size != 0) {
+    io_buffer_ = new net::IOBufferWithSize(size);
+    uint8* data_buffer =
+        reinterpret_cast<uint8*>(io_buffer_->data());
+    for (size_t i = 0; i < size; ++i) {
+      int int_value = -1;
+      data_list_value->GetInteger(i, &int_value);
+      DCHECK(int_value < 256);
+      DCHECK(int_value >= 0);
+      uint8 truncated_int = static_cast<uint8>(int_value);
+      *data_buffer++ = truncated_int;
+    }
+  }
+  return true;
+}
+
+void SocketSendToFunction::Work() {
+  int bytes_written = -1;
+  Socket* socket = controller()->GetSocket(socket_id_);
+  if (socket) {
+    bytes_written = socket->SendTo(io_buffer_, io_buffer_->size(), address_,
+        port_);
+  } else {
+    error_ = kSocketNotFoundError;
+  }
+
+  DictionaryValue* result = new DictionaryValue();
+  result->SetInteger(kBytesWrittenKey, bytes_written);
+  result_.reset(result);
+}
+
+bool SocketSendToFunction::Respond() {
+  return true;
+}
+
 }  // namespace extensions
diff --git a/chrome/browser/extensions/api/socket/socket_api.h b/chrome/browser/extensions/api/socket/socket_api.h
index a9efeaa..04f3038 100644
--- a/chrome/browser/extensions/api/socket/socket_api.h
+++ b/chrome/browser/extensions/api/socket/socket_api.h
@@ -9,6 +9,7 @@
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/extensions/api/api_function.h"
 #include "net/base/io_buffer.h"
+#include "net/base/ip_endpoint.h"
 
 #include <string>
 
@@ -43,10 +44,8 @@ class SocketCreateFunction : public AsyncIOAPIFunction {
     kSocketTypeUDP
   };
 
-  int src_id_;
   SocketType socket_type_;
-  std::string address_;
-  int port_;
+  int src_id_;
   APIResourceEventNotifier* event_notifier_;
 
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.socket.create")
@@ -72,6 +71,8 @@ class SocketConnectFunction : public AsyncIOAPIFunction {
 
  private:
   int socket_id_;
+  std::string address_;
+  int port_;
 
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.socket.connect")
 };
@@ -88,6 +89,20 @@ class SocketDisconnectFunction : public AsyncIOAPIFunction {
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.socket.disconnect")
 };
 
+class SocketBindFunction : public AsyncIOAPIFunction {
+ protected:
+  virtual bool Prepare() OVERRIDE;
+  virtual void Work() OVERRIDE;
+  virtual bool Respond() OVERRIDE;
+
+ private:
+  int socket_id_;
+  std::string address_;
+  int port_;
+
+  DECLARE_EXTENSION_FUNCTION_NAME("experimental.socket.bind")
+};
+
 class SocketReadFunction : public AsyncIOAPIFunction {
  protected:
   virtual bool Prepare() OVERRIDE;
@@ -117,6 +132,38 @@ class SocketWriteFunction : public AsyncIOAPIFunction {
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.socket.write")
 };
 
+class SocketRecvFromFunction : public AsyncIOAPIFunction {
+ protected:
+  virtual bool Prepare() OVERRIDE;
+  virtual void Work() OVERRIDE;
+  virtual bool Respond() OVERRIDE;
+
+ private:
+  int socket_id_;
+  net::IPEndPoint address_;
+
+  DECLARE_EXTENSION_FUNCTION_NAME("experimental.socket.recvFrom")
+};
+
+class SocketSendToFunction : public AsyncIOAPIFunction {
+  public:
+   SocketSendToFunction();
+   virtual ~SocketSendToFunction();
+
+  protected:
+  virtual bool Prepare() OVERRIDE;
+  virtual void Work() OVERRIDE;
+  virtual bool Respond() OVERRIDE;
+
+ private:
+  int socket_id_;
+  scoped_refptr<net::IOBufferWithSize> io_buffer_;
+  std::string address_;
+  int port_;
+
+  DECLARE_EXTENSION_FUNCTION_NAME("experimental.socket.sendTo")
+};
+
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SOCKET_SOCKET_API_H_
diff --git a/chrome/browser/extensions/api/socket/tcp_socket.cc b/chrome/browser/extensions/api/socket/tcp_socket.cc
index 8989fd2..4e211bf 100644
--- a/chrome/browser/extensions/api/socket/tcp_socket.cc
+++ b/chrome/browser/extensions/api/socket/tcp_socket.cc
@@ -14,32 +14,22 @@
 
 namespace extensions {
 
-TCPSocket::TCPSocket(const std::string& address, int port,
-                     APIResourceEventNotifier* event_notifier)
-    : Socket(address, port, event_notifier) {
-  net::IPAddressNumber ip_number;
-  if (net::ParseIPLiteralToNumber(address, &ip_number)) {
-    net::AddressList address_list =
-        net::AddressList::CreateFromIPAddress(ip_number, port);
-    socket_.reset(new net::TCPClientSocket(address_list, NULL,
-                                           net::NetLog::Source()));
-  }
+TCPSocket::TCPSocket(APIResourceEventNotifier* event_notifier)
+    : Socket(event_notifier) {
 }
 
 // For testing.
 TCPSocket::TCPSocket(net::TCPClientSocket* tcp_client_socket,
-                     const std::string& address, int port,
                      APIResourceEventNotifier* event_notifier)
-    : Socket(address, port, event_notifier),
+    : Socket(event_notifier),
       socket_(tcp_client_socket) {
 }
 
 // static
 TCPSocket* TCPSocket::CreateSocketForTesting(
     net::TCPClientSocket* tcp_client_socket,
-    const std::string& address, int port,
     APIResourceEventNotifier* event_notifier) {
-  return new TCPSocket(tcp_client_socket, address, port, event_notifier);
+  return new TCPSocket(tcp_client_socket, event_notifier);
 }
 
 TCPSocket::~TCPSocket() {
@@ -48,18 +38,22 @@ TCPSocket::~TCPSocket() {
   }
 }
 
-bool TCPSocket::IsValid() {
-  return socket_ != NULL;
-}
+int TCPSocket::Connect(const std::string& address, int port) {
+  if (is_connected_)
+    return net::ERR_CONNECTION_FAILED;
 
-net::Socket* TCPSocket::socket() {
-  return socket_.get();
-}
+  net::AddressList address_list;
+  if (!StringAndPortToAddressList(address, port, &address_list))
+    return net::ERR_INVALID_ARGUMENT;
+
+  socket_.reset(new net::TCPClientSocket(address_list, NULL,
+                                         net::NetLog::Source()));
 
-int TCPSocket::Connect() {
   int result = socket_->Connect(base::Bind(
       &TCPSocket::OnConnect, base::Unretained(this)));
-  is_connected_ = result == net::OK;
+  if (result == net::OK) {
+    is_connected_ = true;
+  }
   return result;
 }
 
@@ -68,6 +62,38 @@ void TCPSocket::Disconnect() {
   socket_->Disconnect();
 }
 
+int TCPSocket::Bind(const std::string& address, int port) {
+  // TODO(penghuang): Supports bind for tcp?
+  return net::ERR_FAILED;
+}
+
+int TCPSocket::Read(scoped_refptr<net::IOBuffer> io_buffer, int io_buffer_len) {
+  return socket_->Read(
+      io_buffer.get(),
+      io_buffer_len,
+      base::Bind(&Socket::OnDataRead, base::Unretained(this), io_buffer,
+          static_cast<net::IPEndPoint*>(NULL)));
+}
+
+int TCPSocket::Write(scoped_refptr<net::IOBuffer> io_buffer, int byte_count) {
+  return socket_->Write(
+      io_buffer.get(), byte_count,
+      base::Bind(&Socket::OnWriteComplete, base::Unretained(this)));
+}
+
+int TCPSocket::RecvFrom(scoped_refptr<net::IOBuffer> io_buffer,
+                        int io_buffer_len,
+                        net::IPEndPoint* address) {
+  return net::ERR_FAILED;
+}
+
+int TCPSocket::SendTo(scoped_refptr<net::IOBuffer> io_buffer,
+                      int byte_count,
+                      const std::string& address,
+                      int port) {
+  return net::ERR_FAILED;
+}
+
 void TCPSocket::OnConnect(int result) {
   is_connected_ = result == net::OK;
   event_notifier()->OnConnectComplete(result);
diff --git a/chrome/browser/extensions/api/socket/tcp_socket.h b/chrome/browser/extensions/api/socket/tcp_socket.h
index 051abf4..55ead13 100644
--- a/chrome/browser/extensions/api/socket/tcp_socket.h
+++ b/chrome/browser/extensions/api/socket/tcp_socket.h
@@ -24,28 +24,32 @@ class APIResourceEventNotifier;
 
 class TCPSocket : public Socket {
  public:
-  TCPSocket(const std::string& address, int port,
-            APIResourceEventNotifier* event_notifier);
+  explicit TCPSocket(APIResourceEventNotifier* event_notifier);
   virtual ~TCPSocket();
 
-  virtual bool IsValid() OVERRIDE;
-
-  virtual int Connect() OVERRIDE;
+  virtual int Connect(const std::string& address, int port) OVERRIDE;
   virtual void Disconnect() OVERRIDE;
+  virtual int Bind(const std::string& address, int port) OVERRIDE;
+  virtual int Read(scoped_refptr<net::IOBuffer> io_buffer,
+                   int io_buffer_size) OVERRIDE;
+  virtual int Write(scoped_refptr<net::IOBuffer> io_buffer,
+                    int bytes) OVERRIDE;
+  virtual int RecvFrom(scoped_refptr<net::IOBuffer> io_buffer,
+                       int io_buffer_size,
+                       net::IPEndPoint *address) OVERRIDE;
+  virtual int SendTo(scoped_refptr<net::IOBuffer> io_buffer,
+                     int byte_count,
+                     const std::string& address,
+                     int port) OVERRIDE;
 
   virtual void OnConnect(int result);
 
   static TCPSocket* CreateSocketForTesting(
       net::TCPClientSocket* tcp_client_socket,
-      const std::string& address, int port,
       APIResourceEventNotifier* event_notifier);
 
- protected:
-  virtual net::Socket* socket() OVERRIDE;
-
  private:
   TCPSocket(net::TCPClientSocket* tcp_client_socket,
-            const std::string& address, int port,
             APIResourceEventNotifier* event_notifier);
 
   scoped_ptr<net::TCPClientSocket> socket_;
diff --git a/chrome/browser/extensions/api/socket/tcp_socket_unittest.cc b/chrome/browser/extensions/api/socket/tcp_socket_unittest.cc
index 1573fa5..3efc9c7 100644
--- a/chrome/browser/extensions/api/socket/tcp_socket_unittest.cc
+++ b/chrome/browser/extensions/api/socket/tcp_socket_unittest.cc
@@ -52,7 +52,7 @@ TEST(SocketTest, TestTCPSocketRead) {
   APIResourceEventNotifier* notifier = new MockAPIResourceEventNotifier();
 
   scoped_ptr<TCPSocket> socket(TCPSocket::CreateSocketForTesting(
-      tcp_client_socket, "1.2.3.4", 1, notifier));
+      tcp_client_socket, notifier));
 
   EXPECT_CALL(*tcp_client_socket, Read(_, _, _))
       .Times(1);
@@ -68,7 +68,7 @@ TEST(SocketTest, TestTCPSocketWrite) {
   APIResourceEventNotifier* notifier = new MockAPIResourceEventNotifier();
 
   scoped_ptr<TCPSocket> socket(TCPSocket::CreateSocketForTesting(
-      tcp_client_socket, "1.2.3.4", 1, notifier));
+      tcp_client_socket, notifier));
 
   EXPECT_CALL(*tcp_client_socket, Write(_, _, _))
       .Times(1);
@@ -84,7 +84,7 @@ TEST(SocketTest, TestTCPSocketBlockedWrite) {
   MockAPIResourceEventNotifier* notifier = new MockAPIResourceEventNotifier();
 
   scoped_ptr<TCPSocket> socket(TCPSocket::CreateSocketForTesting(
-      tcp_client_socket, "1.2.3.4", 1, notifier));
+      tcp_client_socket, notifier));
 
   net::CompletionCallback callback;
   EXPECT_CALL(*tcp_client_socket, Write(_, _, _))
diff --git a/chrome/browser/extensions/api/socket/udp_socket.cc b/chrome/browser/extensions/api/socket/udp_socket.cc
index 467df66..7c72b42 100644
--- a/chrome/browser/extensions/api/socket/udp_socket.cc
+++ b/chrome/browser/extensions/api/socket/udp_socket.cc
@@ -13,29 +13,12 @@
 
 namespace extensions {
 
-UDPSocket::UDPSocket(const std::string& address, int port,
-                     APIResourceEventNotifier* event_notifier)
-    : Socket(address, port, event_notifier),
-      socket_(new net::UDPClientSocket(net::DatagramSocket::DEFAULT_BIND,
-                                       net::RandIntCallback(),
-                                       NULL,
-                                       net::NetLog::Source())) {
-}
-
-// For testing.
-UDPSocket::UDPSocket(net::DatagramClientSocket* datagram_client_socket,
-                     const std::string& address, int port,
-                     APIResourceEventNotifier* event_notifier)
-    : Socket(address, port, event_notifier),
-      socket_(datagram_client_socket) {
-}
-
-// static
-UDPSocket* UDPSocket::CreateSocketForTesting(
-    net::DatagramClientSocket* datagram_client_socket,
-    const std::string& address, int port,
-    APIResourceEventNotifier* event_notifier) {
-  return new UDPSocket(datagram_client_socket, address, port, event_notifier);
+UDPSocket::UDPSocket(APIResourceEventNotifier* event_notifier)
+    : Socket(event_notifier),
+      socket_(new net::UDPSocket(net::DatagramSocket::DEFAULT_BIND,
+                                 net::RandIntCallback(),
+                                 NULL,
+                                 net::NetLog::Source())) {
 }
 
 UDPSocket::~UDPSocket() {
@@ -44,21 +27,25 @@ UDPSocket::~UDPSocket() {
   }
 }
 
-bool UDPSocket::IsValid() {
-  return socket_ != NULL;
-}
+int UDPSocket::Connect(const std::string& address, int port) {
+  if (is_connected_)
+    return net::ERR_CONNECTION_FAILED;
 
-net::Socket* UDPSocket::socket() {
-  return socket_.get();
+  net::IPEndPoint ip_end_point;
+  if (!StringAndPortToIPEndPoint(address, port, &ip_end_point))
+    return net::ERR_INVALID_ARGUMENT;
+
+  int result = socket_->Connect(ip_end_point);
+  is_connected_ = (result == net::OK);
+  return result;
 }
 
-int UDPSocket::Connect() {
-  net::IPAddressNumber ip_number;
-  if (!net::ParseIPLiteralToNumber(address_, &ip_number))
+int UDPSocket::Bind(const std::string& address, int port) {
+  net::IPEndPoint ip_end_point;
+  if (!StringAndPortToIPEndPoint(address, port, &ip_end_point))
     return net::ERR_INVALID_ARGUMENT;
-  int result = socket_->Connect(net::IPEndPoint(ip_number, port_));
-  is_connected_ = result == net::OK;
-  return result;
+
+  return socket_->Bind(ip_end_point);
 }
 
 void UDPSocket::Disconnect() {
@@ -66,4 +53,43 @@ void UDPSocket::Disconnect() {
   socket_->Close();
 }
 
+int UDPSocket::Read(scoped_refptr<net::IOBuffer> io_buffer, int io_buffer_len) {
+  return socket_->Read(
+      io_buffer.get(),
+      io_buffer_len,
+      base::Bind(&Socket::OnDataRead, base::Unretained(this), io_buffer,
+          static_cast<net::IPEndPoint*>(NULL)));
+}
+
+int UDPSocket::Write(scoped_refptr<net::IOBuffer> io_buffer, int byte_count) {
+  return socket_->Write(
+      io_buffer.get(), byte_count,
+      base::Bind(&Socket::OnWriteComplete, base::Unretained(this)));
+}
+
+int UDPSocket::RecvFrom(scoped_refptr<net::IOBuffer> io_buffer,
+                        int io_buffer_len,
+                        net::IPEndPoint* address) {
+  return socket_->RecvFrom(
+      io_buffer.get(),
+      io_buffer_len,
+      address,
+      base::Bind(&Socket::OnDataRead, base::Unretained(this), io_buffer,
+          address));
+}
+
+int UDPSocket::SendTo(scoped_refptr<net::IOBuffer> io_buffer,
+                      int byte_count,
+                      const std::string& address,
+                      int port) {
+  net::IPEndPoint ip_end_point;
+  if (!StringAndPortToIPEndPoint(address, port, &ip_end_point))
+    return net::ERR_INVALID_ARGUMENT;
+  return socket_->SendTo(
+      io_buffer.get(),
+      byte_count,
+      ip_end_point,
+      base::Bind(&Socket::OnWriteComplete, base::Unretained(this)));
+}
+
 }  // namespace extensions
diff --git a/chrome/browser/extensions/api/socket/udp_socket.h b/chrome/browser/extensions/api/socket/udp_socket.h
index 4cffa98..c527e56 100644
--- a/chrome/browser/extensions/api/socket/udp_socket.h
+++ b/chrome/browser/extensions/api/socket/udp_socket.h
@@ -9,7 +9,7 @@
 #include <string>
 
 #include "chrome/browser/extensions/api/socket/socket.h"
-#include "net/udp/datagram_client_socket.h"
+#include "net/udp/udp_socket.h"
 
 namespace net {
 class Socket;
@@ -21,30 +21,26 @@ class APIResourceEventNotifier;
 
 class UDPSocket : public Socket {
  public:
-  UDPSocket(const std::string& address, int port,
-            APIResourceEventNotifier* event_notifier);
+  explicit UDPSocket(APIResourceEventNotifier* event_notifier);
   virtual ~UDPSocket();
 
-  virtual bool IsValid() OVERRIDE;
-
-  virtual int Connect() OVERRIDE;
+  virtual int Connect(const std::string& address, int port) OVERRIDE;
   virtual void Disconnect() OVERRIDE;
-
-  static UDPSocket* CreateSocketForTesting(
-      net::DatagramClientSocket* datagram_client_socket,
-      const std::string& address, int port,
-      APIResourceEventNotifier* event_notifier);
-
- protected:
-  virtual net::Socket* socket() OVERRIDE;
+  virtual int Bind(const std::string& address, int port) OVERRIDE;
+  virtual int Read(scoped_refptr<net::IOBuffer> io_buffer,
+                   int io_buffer_size) OVERRIDE;
+  virtual int Write(scoped_refptr<net::IOBuffer> io_buffer,
+                    int bytes) OVERRIDE;
+  virtual int RecvFrom(scoped_refptr<net::IOBuffer> io_buffer,
+                       int io_buffer_size,
+                       net::IPEndPoint* address) OVERRIDE;
+  virtual int SendTo(scoped_refptr<net::IOBuffer> io_buffer,
+                     int byte_count,
+                     const std::string& address,
+                     int port) OVERRIDE;
 
  private:
-  // Special constructor for testing.
-  UDPSocket(net::DatagramClientSocket* datagram_client_socket,
-            const std::string& address, int port,
-            APIResourceEventNotifier* event_notifier);
-
-  scoped_ptr<net::DatagramClientSocket> socket_;
+  scoped_ptr<net::UDPSocket> socket_;
 };
 
 }  //  namespace extensions
diff --git a/chrome/browser/extensions/api/socket/udp_socket_unittest.cc b/chrome/browser/extensions/api/socket/udp_socket_unittest.cc
deleted file mode 100644
index b8c50a1..0000000
--- a/chrome/browser/extensions/api/socket/udp_socket_unittest.cc
+++ /dev/null
@@ -1,104 +0,0 @@
-// Copyright (c) 2012 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 "chrome/browser/extensions/api/socket/udp_socket.h"
-
-#include "base/memory/scoped_ptr.h"
-#include "chrome/browser/extensions/api/api_resource_event_notifier.h"
-#include "net/base/completion_callback.h"
-#include "net/base/io_buffer.h"
-#include "net/base/net_errors.h"
-#include "net/base/rand_callback.h"
-#include "net/udp/udp_client_socket.h"
-#include "testing/gmock/include/gmock/gmock.h"
-
-using testing::_;
-using testing::DoAll;
-using testing::Return;
-using testing::SaveArg;
-
-namespace extensions {
-
-class MockUDPSocket : public net::UDPClientSocket {
- public:
-  MockUDPSocket()
-      : net::UDPClientSocket(net::DatagramSocket::DEFAULT_BIND,
-                             net::RandIntCallback(),
-                             NULL,
-                             net::NetLog::Source()) {}
-
-  MOCK_METHOD3(Read, int(net::IOBuffer* buf, int buf_len,
-                         const net::CompletionCallback& callback));
-  MOCK_METHOD3(Write, int(net::IOBuffer* buf, int buf_len,
-                          const net::CompletionCallback& callback));
- private:
-  DISALLOW_COPY_AND_ASSIGN(MockUDPSocket);
-};
-
-class MockAPIResourceEventNotifier : public APIResourceEventNotifier {
- public:
-  MockAPIResourceEventNotifier() : APIResourceEventNotifier(NULL, NULL,
-                                                            std::string(),
-                                                            0, GURL()) {}
-
-  MOCK_METHOD2(OnReadComplete, void(int result_code,
-                                    const std::string& message));
-  MOCK_METHOD1(OnWriteComplete, void(int result_code));
-};
-
-TEST(SocketTest, TestUDPSocketRead) {
-  MockUDPSocket* udp_client_socket = new MockUDPSocket();
-  APIResourceEventNotifier* notifier = new MockAPIResourceEventNotifier();
-
-  scoped_ptr<UDPSocket> socket(UDPSocket::CreateSocketForTesting(
-      udp_client_socket, "1.2.3.4", 1, notifier));
-
-  EXPECT_CALL(*udp_client_socket, Read(_, _, _))
-      .Times(1);
-
-  scoped_refptr<net::IOBufferWithSize> io_buffer(
-      new net::IOBufferWithSize(512));
-  socket->Read(io_buffer.get(), io_buffer->size());
-}
-
-TEST(SocketTest, TestUDPSocketWrite) {
-  MockUDPSocket* udp_client_socket = new MockUDPSocket();
-  APIResourceEventNotifier* notifier = new MockAPIResourceEventNotifier();
-
-  scoped_ptr<UDPSocket> socket(UDPSocket::CreateSocketForTesting(
-      udp_client_socket, "1.2.3.4", 1, notifier));
-
-  EXPECT_CALL(*udp_client_socket, Write(_, _, _))
-      .Times(1);
-
-  scoped_refptr<net::IOBufferWithSize> io_buffer(
-      new net::IOBufferWithSize(512));
-  socket->Write(io_buffer.get(), io_buffer->size());
-}
-
-TEST(SocketTest, TestUDPSocketBlockedWrite) {
-  MockUDPSocket* udp_client_socket = new MockUDPSocket();
-  MockAPIResourceEventNotifier* notifier = new MockAPIResourceEventNotifier();
-
-  scoped_ptr<UDPSocket> socket(UDPSocket::CreateSocketForTesting(
-      udp_client_socket, "1.2.3.4", 1, notifier));
-
-  net::CompletionCallback callback;
-  EXPECT_CALL(*udp_client_socket, Write(_, _, _))
-      .Times(1)
-      .WillOnce(testing::DoAll(SaveArg<2>(&callback),
-                               Return(net::ERR_IO_PENDING)));
-
-  scoped_refptr<net::IOBufferWithSize> io_buffer(new net::IOBufferWithSize(1));
-  ASSERT_EQ(net::ERR_IO_PENDING, socket->Write(io_buffer.get(),
-                                               io_buffer->size()));
-
-  // Good. Original call came back unable to complete. Now pretend the socket
-  // finished, and confirm that we passed the error back.
-  EXPECT_CALL(*notifier, OnWriteComplete(42))
-      .Times(1);
-  callback.Run(42);
-}
-
-}  // namespace extensions
diff --git a/chrome/chrome_tests.gypi b/chrome/chrome_tests.gypi
index fcb41c1..88e5b39 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -1315,7 +1315,6 @@
         'browser/extensions/api/proxy/proxy_api_helpers_unittest.cc',
         'browser/extensions/api/serial/serial_connection_unittest.cc',
         'browser/extensions/api/socket/tcp_socket_unittest.cc',
-        'browser/extensions/api/socket/udp_socket_unittest.cc',
         'browser/extensions/api/web_navigation/web_navigation_unittest.cc',
         'browser/extensions/api/web_request/web_request_api_unittest.cc',
         'browser/extensions/api/web_request/web_request_time_tracker_unittest.cc',
diff --git a/chrome/common/extensions/api/experimental.socket.idl b/chrome/common/extensions/api/experimental.socket.idl
index 7fdef7f..b42ecf7 100644
--- a/chrome/common/extensions/api/experimental.socket.idl
+++ b/chrome/common/extensions/api/experimental.socket.idl
@@ -52,6 +52,8 @@
 
   callback ConnectCallback = void (long result);
 
+  callback BindCallback = void (long result);
+
   dictionary ReadInfo {
     // The resultCode returned from the underlying read() call.
     long resultCode;
@@ -71,18 +73,27 @@
 
   callback WriteCallback = void (WriteInfo writeInfo);
 
+  dictionary RecvFromInfo {
+    // The data received. Warning: will probably become a blob or other
+    // appropriate binary-friendly type.
+    // TODO(miket): [instanceOf=ArrayBuffer]object data;
+    long[] data;
+    DOMString address;
+    long port;
+  };
+
+  callback RecvFromCallback = void (RecvFromInfo recvFromInfo);
+
+  callback SendToCallback = void (long bytesWritten);
+
   interface Functions {
     // Creates a socket of the specified type that will connect to the specified
     // remote machine.
     // |type| : The type of socket to create. Must be <code>tcp</code> or
     // <code>udp</code>.
-    // |address| : The address of the remote machine.
-    // |port| : The port of the remote machine.
     // |options| : The socket options.
     // |callback| : Called when the socket has been created.
     static void create(DOMString type,
-                       DOMString address,
-                       long port,
                        optional CreateOptions options,
                        CreateCallback callback);
 
@@ -90,13 +101,27 @@
     // |socketId| : The socketId.
     static void destroy(long socketId);
 
-    // Connects the socket to the remote machine. For UDP sockets,
-    // <code>connect</code> is a non-operation but is safe to call.
+    // Connects the socket to the remote machine.
     // |socketId| : The socketId.
+    // |address| : The address of the remote machine.
+    // |port| : The port of the remote machine.
     // |callback| : Called when the connection attempt is complete.
     static void connect(long socketId,
+                        DOMString address,
+                        long port,
                         ConnectCallback callback);
 
+    // Binds the local address for UDP socket. Currently, it does not support
+    // TCP socket.
+    // |socketId| : The socketId.
+    // |address| : The address of the remote machine.
+    // |port| : The port of the remote machine.
+    // |callback| : Called when the connection attempt is complete.
+    static void bind(long socketId,
+                     DOMString address,
+                     long port,
+                     BindCallback callback);
+
     // Disconnects the socket. For UDP sockets, <code>disconnect</code> is a
     // non-operation but is safe to call.
     // |socketId| : The socketId.
@@ -121,6 +146,29 @@
     static void write(long socketId,
                       long[] data,
                       WriteCallback callback);
+
+    // Reads data from the given socket.
+    // |socketId| : The socketId.
+    // |callback| : Delivers data that was available to be read without
+    // blocking.
+    static void recvFrom(long socketId,
+                         RecvFromCallback callback);
+
+    // Writes data on the given socket.
+    // |socketId| : The socketId.
+    // |data| : The data to write. Warning: will probably become a blob or other
+    // appropriate binary-friendly type.
+    // |address| : The address of the remote machine.
+    // |port| : The port of the remote machine.
+    // |callback| : Called when the first of any of the following happens: the
+    // write operation completes without blocking, the write operation blocked
+    // before completion (in which case onEvent() will eventually be called with
+    // a <code>writeComplete</code> event), or an error occurred.
+    static void sendTo(long socketId,
+                       long[] data,
+                       DOMString address,
+                       long port,
+                       SendToCallback callback);
   };
 
   interface Events {
diff --git a/chrome/renderer/resources/extensions/experimental.socket_custom_bindings.js b/chrome/renderer/resources/extensions/experimental.socket_custom_bindings.js
index 40011b2..80f016b 100644
--- a/chrome/renderer/resources/extensions/experimental.socket_custom_bindings.js
+++ b/chrome/renderer/resources/extensions/experimental.socket_custom_bindings.js
@@ -16,10 +16,10 @@
 
       apiFunctions.setHandleRequest('create', function() {
           var args = arguments;
-          if (args.length > 3 && args[3] && args[3].onEvent) {
+          if (args.length > 1 && args[1] && args[1].onEvent) {
             var id = GetNextSocketEventId();
-            args[3].srcId = id;
-            chromeHidden.socket.handlers[id] = args[3].onEvent;
+            args[1].srcId = id;
+            chromeHidden.socket.handlers[id] = args[1].onEvent;
 
             // Keep the page alive until the event finishes.
             // Balanced in eventHandler.
diff --git a/chrome/test/data/extensions/api_test/socket/api/background.js b/chrome/test/data/extensions/api_test/socket/api/background.js
index 7eb9874..fef3347 100644
--- a/chrome/test/data/extensions/api_test/socket/api/background.js
+++ b/chrome/test/data/extensions/api_test/socket/api/background.js
@@ -72,7 +72,7 @@ var testSocketCreation = function() {
     chrome.test.succeed();
   }
 
-  socket.create(protocol, address, port, {onEvent: function(e) {}}, onCreate);
+  socket.create(protocol, {onEvent: function(e) {}}, onCreate);
 };
 
 function onDataRead(readInfo) {
@@ -91,19 +91,26 @@ function onDataRead(readInfo) {
   // Blocked. Wait for onEvent.
 }
 
-function onWriteComplete(writeInfo) {
+function onWriteOrSendToComplete(writeInfo) {
   bytesWritten += writeInfo.bytesWritten;
   if (bytesWritten == request.length) {
-    socket.read(socketId, onDataRead);
+    if (protocol == "tcp")
+      socket.read(socketId, onDataRead);
+    else
+      socket.recvFrom(socketId, onDataRead);
   }
   // Blocked. Wait for onEvent.
 }
 
-function onConnectComplete(connectResult) {
+function onConnectOrBindComplete(connectResult) {
   if (connectResult == 0) {
     string2ArrayBuffer(request, function(arrayBuffer) {
         var longs = arrayBufferToArrayOfLongs(arrayBuffer);
-        socket.write(socketId, longs, onWriteComplete);
+        if (protocol == "tcp")
+          socket.write(socketId, longs, onWriteOrSendToComplete);
+        else
+          socket.sendTo(socketId, longs, address, port,
+              onWriteOrSendToComplete);
       });
   }
   // Blocked. Wait for onEvent.
@@ -112,16 +119,19 @@ function onConnectComplete(connectResult) {
 function onCreate(socketInfo) {
   socketId = socketInfo.socketId;
   chrome.test.assertTrue(socketId > 0, "failed to create socket");
-  socket.connect(socketId, onConnectComplete);
+  if (protocol == "tcp")
+    socket.connect(socketId, address, port, onConnectOrBindComplete);
+  else
+    socket.bind(socketId, "0.0.0.0", 0, onConnectOrBindComplete);
 }
 
 function onEvent(socketEvent) {
   if (socketEvent.type == "connectComplete") {
-    onConnectComplete(socketEvent.resultCode);
+    onConnectOrBindComplete(socketEvent.resultCode);
   } else if (socketEvent.type == "dataRead") {
     onDataRead({resultCode: socketEvent.resultCode, data: socketEvent.data});
   } else if (socketEvent.type == "writeComplete") {
-    onWriteComplete(socketEvent.resultCode);
+    onWriteOnSendToComplete(socketEvent.resultCode);
   } else {
     console.log("Received unhandled socketEvent of type " + socketEvent.type);
   }
@@ -143,7 +153,7 @@ var testSending = function() {
   waitCount = 0;
 
   setTimeout(waitForBlockingOperation, 1000);
-  socket.create(protocol, address, port, { onEvent: onEvent }, onCreate);
+  socket.create(protocol, {onEvent: onEvent}, onCreate);
 };
 
 var onMessageReply = function(message) {
diff --git a/net/udp/udp_socket_libevent.h b/net/udp/udp_socket_libevent.h
index 4317740..b6fe51f 100644
--- a/net/udp/udp_socket_libevent.h
+++ b/net/udp/udp_socket_libevent.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
@@ -12,6 +12,7 @@
 #include "base/threading/non_thread_safe.h"
 #include "net/base/address_list_net_log_param.h"
 #include "net/base/completion_callback.h"
+#include "net/base/net_export.h"
 #include "net/base/rand_callback.h"
 #include "net/base/io_buffer.h"
 #include "net/base/ip_endpoint.h"
@@ -20,7 +21,7 @@
 
 namespace net {
 
-class UDPSocketLibevent : public base::NonThreadSafe {
+class NET_EXPORT UDPSocketLibevent : public base::NonThreadSafe {
  public:
   UDPSocketLibevent(DatagramSocket::BindType bind_type,
                     const RandIntCallback& rand_int_cb,
diff --git a/net/udp/udp_socket_win.h b/net/udp/udp_socket_win.h
index d49f64d..e55b1f0 100644
--- a/net/udp/udp_socket_win.h
+++ b/net/udp/udp_socket_win.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
@@ -13,6 +13,7 @@
 #include "base/threading/non_thread_safe.h"
 #include "base/win/object_watcher.h"
 #include "net/base/completion_callback.h"
+#include "net/base/net_export.h"
 #include "net/base/rand_callback.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/io_buffer.h"
@@ -21,7 +22,7 @@
 
 namespace net {
 
-class UDPSocketWin : public base::NonThreadSafe {
+class NET_EXPORT UDPSocketWin : NON_EXPORTED_BASE(public base::NonThreadSafe) {
  public:
   UDPSocketWin(DatagramSocket::BindType bind_type,
                const RandIntCallback& rand_int_cb,