Complete the switch to ServiceObject

runtime/bin/vmservice/client/lib/src/service/vm.dart

+// Copyright (c) 2014, 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 service;
+
+abstract class VM extends Observable {
+  IsolateList _isolates;
+  @reflectable IsolateList get isolates => _isolates;
+
+  void _initOnce() {
+    assert(_isolates == null);
+    _isolates = new IsolateList(this);
+  }
+
+  VM() {
+    _initOnce();
+  }
+
+  /// Get [id] as an [ObservableMap] from the service directly.
+  Future<ObservableMap> getAsMap(String id) {
+    return getString(id).then((response) {
+      try {
+        var map = JSON.decode(response);
+        Logger.root.info('Decoded $id');
+        return toObservable(map);
+      } catch (e, st) {
+        return toObservable({
+          'type': 'Error',
+          'id': '',
+          'kind': 'DecodeError',
+          'message': '$e',
+        });
+      }
+    }).catchError((error) {
+      return toObservable({
+        'type': 'Error',
+        'id': '',
+        'kind': 'LastResort',
+        'message': '$error'
+      });
+    });
+  }
+
+  /// Get [id] as a [String] from the service directly. See [getAsMap].
+  Future<String> getString(String id);
+}