Multicast DNS implementation (initial)

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 67120fee8806cada8336f1fe054ef080e81c7418..f2016c0e0d04916d4e14926c54360a3b3c2e011a 100644
--- a/net/udp/datagram_server_socket.h
+++ b/net/udp/datagram_server_socket.h
@@ -69,33 +69,29 @@ class NET_EXPORT DatagramServerSocket : public DatagramSocket {
   // Should be called before Listen().
   virtual void AllowBroadcast() = 0;
 
-  // Join the multicast group.
-  // |group_address| is the group address to join, could be either
-  // an IPv4 or IPv6 address.
-  // Return a network error code.
+  // Join the multicast group with address |group_address|.
+  // Returns a network error code.
   virtual int JoinGroup(const IPAddressNumber& group_address) const = 0;
 
-  // Leave the multicast group.
-  // |group_address| is the group address to leave, could be either
-  // an IPv4 or IPv6 address. If the socket hasn't joined the group,
-  // it will be ignored.
+  // Leave the multicast group with address |group_address|.
+  // If the socket hasn't joined the group, it will be ignored.
   // It's optional to leave the multicast group before destroying
   // the socket. It will be done by the OS.
-  // Return a network error code.
+  // Returns a network error code.
   virtual int LeaveGroup(const IPAddressNumber& group_address) const = 0;
 
   // Set the time-to-live option for UDP packets sent to the multicast
   // group address. The default value of this option is 1.
   // Cannot be negative or more than 255.
   // Should be called before Bind().
-  // Return a network error code.
+  // Returns a network error code.
   virtual int SetMulticastTimeToLive(int time_to_live) = 0;
 
   // Set the loopback flag for UDP socket. If this flag is true, the host
   // will receive packets sent to the joined group from itself.
   // The default value of this option is true.
   // Should be called before Bind().
-  // Return a network error code.
+  // Returns a network error code.
   virtual int SetMulticastLoopbackMode(bool loopback) = 0;
 };