Converted Observatory vm-nav-menu element

runtime/observatory/lib/src/models/objects/vm.dart

+// Copyright (c) 2016, 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 models;
+
+abstract class VMRef {
+  String get name;
+}
+
+abstract class VM implements VMRef {
+  /// Word length on target architecture (e.g. 32, 64).
+  int get architectureBits;
+
+  /// The CPU we are generating code for.
+  String get targetCPU;
+
+  /// The CPU we are actually running on.
+  String get hostCPU;
+
+  /// The Dart VM version string.
+  String get version;
+
+  /// The process id for the VM.
+  int get pid;
+
+  /// The time that the VM started in milliseconds since the epoch.
+  ///
+  /// Suitable to pass to DateTime.fromMillisecondsSinceEpoch.
+  DateTime get startTime;
+
+  // A list of isolates running in the VM.
+  Iterable<IsolateRef> get isolates;
+}