Mojo UDP API implementation.

mojo/services/public/interfaces/network/udp_socket.mojom

Index: mojo/services/public/interfaces/network/udp_socket.mojom
diff --git a/mojo/services/public/interfaces/network/udp_socket.mojom b/mojo/services/public/interfaces/network/udp_socket.mojom
index b1cac8b079f96a8c01af793fdaa9ee0bc902211b..fe7b7c29c05080c8d76f3dac1bde5b8be9b5791e 100644
--- a/mojo/services/public/interfaces/network/udp_socket.mojom
+++ b/mojo/services/public/interfaces/network/udp_socket.mojom
@@ -9,13 +9,15 @@ module mojo {
 
 [Client=UDPSocketClient]
 interface UDPSocket {
-  // Sets the send buffer size (in bytes) for the socket.
+  // Sets the send buffer size (in bytes) for the socket. The socket must be
+  // bound.
   //
   // Note: This is only treated as a hint. Even if it succeeds, the service
   // doesn't guarantee it will conform to the size.
   SetSendBufferSize(uint32 size) => (NetworkError result);
 
-  // Sets the receive buffer size (in bytes) for the socket.
+  // Sets the receive buffer size (in bytes) for the socket. The socket must be
+  // bound.
   //
   // Note: This is only treated as a hint. Even if it succeeds, the service
   // doesn't guarantee it will conform to the size.