Observatory now uses websockets to communicate with the vm.

runtime/bin/vmservice/server.dart

Index: runtime/bin/vmservice/server.dart
diff --git a/runtime/bin/vmservice/server.dart b/runtime/bin/vmservice/server.dart
index 051ea43ff64eed6d97a83ea3b0b961a65516dae4..da4cb4d7d7ec88b7cc54700857ca37f3d95a6983 100644
--- a/runtime/bin/vmservice/server.dart
+++ b/runtime/bin/vmservice/server.dart
@@ -29,9 +29,9 @@ class WebSocketClient extends Client {
         return;
       }
       var seq = map['seq'];
-      onMessage(seq, new Message.fromMap(map));
+      onMessage(seq, new Message.fromUri(Uri.parse(map['request'])));
     } else {
-      socket.close(BINARY_MESSAGE_ERROR_CODE, 'message must be a string.');
+      socket.close(BINARY_MESSAGE_ERROR_CODE, 'Message must be a string.');
     }
   }