Fix http requests and the crash dump RPC

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 c5a9acdd222ccb589890bf4c1e9d6099350786f7..1f807e7ad7a23c295c191bbe3ef7155f6e2ba347 100644
--- a/runtime/bin/vmservice/server.dart
+++ b/runtime/bin/vmservice/server.dart
@@ -126,6 +126,7 @@ class Server {
       request.response.close();
       return;
     }
+    // HTTP based service request.
     var client = new HttpRequestClient(request, _service);
     var message = new Message.fromUri(client, request.uri);
     client.onMessage(null, message);