Add NetLog support to UDP sockets.

net/udp/udp_socket_win.h

Index: net/udp/udp_socket_win.h
===================================================================
--- net/udp/udp_socket_win.h	(revision 105801)
+++ net/udp/udp_socket_win.h	(working copy)
@@ -21,8 +21,6 @@
 
 namespace net {
 
-class BoundNetLog;
-
 class UDPSocketWin : public base::NonThreadSafe {
  public:
   UDPSocketWin(DatagramSocket::BindType bind_type,
@@ -130,9 +128,14 @@
   void DoWriteCallback(int rv);
   void DidCompleteRead();
   void DidCompleteWrite();
-  bool ProcessSuccessfulRead(int num_bytes, IPEndPoint* address);
-  void ProcessSuccessfulWrite(int num_bytes);
 
+  // Handles stats and logging. |result| is the number of bytes transferred, on
+  // success, or the net error code on failure. Returns |result|.
+  // LogRead retrieves the address from from |recv_addr_storage_|, while
+  // LogWrite takes it as an argument.
+  int LogRead(int result, const char* bytes) const;
+  int LogWrite(int result, const char* bytes, const IPEndPoint* address) const;
+
   // Returns the OS error code (or 0 on success).
   int CreateSocket(const IPEndPoint& address);
 
@@ -144,12 +147,17 @@
                     const IPEndPoint* address,
                     OldCompletionCallback* callback);
 
+  int InternalConnect(const IPEndPoint& address);
   int InternalRecvFrom(IOBuffer* buf, int buf_len, IPEndPoint* address);
   int InternalSendTo(IOBuffer* buf, int buf_len, const IPEndPoint* address);
 
   int DoBind(const IPEndPoint& address);
   int RandomBind(const IPEndPoint& address);
 
+  // Attempts to convert the data in |recv_addr_storage_| and |recv_addr_len_|
+  // to an IPEndPoint and writes it to |address|. Returns true on success.
+  bool ReceiveAddressToIPEndpoint(IPEndPoint* address) const;
+
   SOCKET socket_;
 
   // How to do source port binding, used only when UDPSocket is part of
@@ -182,6 +190,10 @@
   socklen_t recv_addr_len_;
   IPEndPoint* recv_from_address_;
 
+  // Cached copy of the current address we're sending to, if any.  Used for
+  // logging.
+  scoped_ptr<IPEndPoint> send_to_address_;
+
   // The buffer used by InternalWrite() to retry Write requests
   scoped_refptr<IOBuffer> write_iobuffer_;