Add current rss and embedder name to Observatory

runtime/observatory/lib/src/repositories/vm.dart

Index: runtime/observatory/lib/src/repositories/vm.dart
diff --git a/runtime/observatory/lib/src/repositories/vm.dart b/runtime/observatory/lib/src/repositories/vm.dart
new file mode 100644
index 0000000000000000000000000000000000000000..514e3741a84051a1dfb85ea53040a41f96b7822f
--- /dev/null
+++ b/runtime/observatory/lib/src/repositories/vm.dart
@@ -0,0 +1,14 @@
+// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+part of repositories;
+
+class VMRepository implements M.VMRepository {
+  Future<M.VM> get(M.VMRef ref) async {
+    S.VM vm = ref as S.VM;
+    assert(vm != null);
+    await vm.reload();
+    return vm;
+  }
+}