Added broadcasting feature to UDP server sockets.

net/udp/datagram_server_socket.h

Index: net/udp/datagram_server_socket.h
diff --git a/net/udp/datagram_server_socket.h b/net/udp/datagram_server_socket.h
index 759b0e42709a581bb1b6c27a8290bc2f9a41b3c5..698b1bd8a506f9ef3c73c26056caf7c491d4362f 100644
--- a/net/udp/datagram_server_socket.h
+++ b/net/udp/datagram_server_socket.h
@@ -59,6 +59,14 @@ class NET_EXPORT DatagramServerSocket : public DatagramSocket {
 
   // Set the send buffer size (in bytes) for the socket.
   virtual bool SetSendBufferSize(int32 size) = 0;
+
+  // Allows the socket to share the local address to which socket will
+  // be bound with other sockets. Should be called before Listen.

[Sergey Ulanov, 2012/07/12 18:15:37]

nit: s/Listen/Listen()/

[wtc, 2012/07/12 23:49:47]

It would be nice to point out that this is often about
sharing the address with (the sockets in) other processes.

[ygorshenin1, 2012/07/16 10:29:44]

Done.

[ygorshenin1, 2012/07/16 10:29:44]

Done.

+  virtual void AllowAddressReuse() = 0;
+
+  // Makes the socket ready for broadcasting. Should be called before

[Sergey Ulanov, 2012/07/12 18:15:37]

This comment is not very clear. Suggest "Allow sending and receiving packets
sent to and from broadcast addresses."

[ygorshenin1, 2012/07/16 10:29:44]

Done.

+  // Listen.

[Sergey Ulanov, 2012/07/12 18:15:37]

nit: s/Listen/Listen()/

[ygorshenin1, 2012/07/16 10:29:44]

Done.

+  virtual void AllowBroadcast() = 0;
 };
 
 }  // namespace net