Standardize error reporting of IPEndPoint::ToSockAddr and

net/udp/udp_socket_win.cc

Index: net/udp/udp_socket_win.cc
===================================================================
--- net/udp/udp_socket_win.cc	(revision 259378)
+++ net/udp/udp_socket_win.cc	(working copy)
@@ -553,7 +553,7 @@
       // Convert address.
       if (address && result >= 0) {
         if (!ReceiveAddressToIPEndpoint(address))
-          result = ERR_FAILED;
+          result = ERR_ADDRESS_INVALID;
       }
       LogRead(result, buf->data());
       return result;
@@ -582,7 +582,7 @@
     storage.addr_len = 0;
   } else {
     if (!address->ToSockAddr(addr, &storage.addr_len)) {
-      int result = ERR_FAILED;
+      int result = ERR_ADDRESS_INVALID;
       LogWrite(result, NULL, NULL);
       return result;
     }