Implement parts of the Mojo TCP interfaces.

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

Index: mojo/services/public/interfaces/network/network_service.mojom
diff --git a/mojo/services/public/interfaces/network/network_service.mojom b/mojo/services/public/interfaces/network/network_service.mojom
index 78841448dccf895b4725ab2c5c117aa415a2202f..8a49797d3ffd59f7f2fd124fe7479c9b227662e7 100644
--- a/mojo/services/public/interfaces/network/network_service.mojom
+++ b/mojo/services/public/interfaces/network/network_service.mojom
@@ -6,7 +6,7 @@ import "mojo/services/public/interfaces/network/cookie_store.mojom"
 import "mojo/services/public/interfaces/network/net_address.mojom"
 import "mojo/services/public/interfaces/network/network_error.mojom"
 import "mojo/services/public/interfaces/network/tcp_bound_socket.mojom"
-import "mojo/services/public/interfaces/network/tcp_client_socket.mojom"
+import "mojo/services/public/interfaces/network/tcp_connected_socket.mojom"
 import "mojo/services/public/interfaces/network/url_loader.mojom"
 import "mojo/services/public/interfaces/network/web_socket.mojom"
 
@@ -27,14 +27,14 @@ interface NetworkService {
   //
   // If you want to create a client socket to connect to a server and are in
   // the common case where you don't care about the local address it's bound
-  // to, use CreateTCPClientSocket.
+  // to, use CreateTCPConnectedSocket.
   //
   // The local address can specify 0 for the port to specify that the OS should
   // pick an available port for the given address, or it can pass 0 for the
   // address and port for the OS to pick both the local address and port. In
   // all success cases, the resulting local address will be passed to the
   // callback as bound_to.
-  CreateTCPBoundSocket(NetAddress local_address,
+  CreateTCPBoundSocket(NetAddress? local_address,
                        TCPBoundSocket& bound_socket)
       => (NetworkError result, NetAddress? bound_to);
 
@@ -44,10 +44,10 @@ interface NetworkService {
   //
   // If you want control over the local address and port, instead use
   // CreateTCPBoundSocket.
-  CreateTCPClientSocket(NetAddress remote_address,
-                        handle<data_pipe_consumer> send_stream,
-                        handle<data_pipe_producer> receive_stream,
-                        TCPClientSocket& client_socket)
+  CreateTCPConnectedSocket(NetAddress remote_address,
+                           handle<data_pipe_consumer> send_stream,
+                           handle<data_pipe_producer> receive_stream,
+                           TCPConnectedSocket& client_socket)
       => (NetworkError result,
           NetAddress? local_address);
 };