Added page to Observatory to display native memory allocation information.

runtime/observatory/lib/src/elements/helpers/uris.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.
 
 import 'package:observatory/models.dart' as M;
 
 /// Utility class for URIs generation.
 abstract class Uris {
   static String _isolatePage(String path, M.IsolateRef isolate,
       {M.ObjectRef object}) {
@@ skipping 21 matching lines @@
     if (pos == null) {
       return _isolatePage('/inspect', isolate, object: object);
     }
     return _isolatePage('/inspect', isolate, object: object) + '---pos=${pos}';
   }
 
   static String logging(M.IsolateRef isolate) =>
       _isolatePage('/logging', isolate);
   static String metrics(M.IsolateRef isolate) =>
       _isolatePage('/metrics', isolate);
+  static String nativeMemory() => '#/native-memory-profile';
   static String objectStore(M.IsolateRef isolate) =>
       _isolatePage('/object-store', isolate);
   static String persistentHandles(M.IsolateRef isolate) =>
       _isolatePage('/persistent-handles', isolate);
   static String ports(M.IsolateRef isolate) => _isolatePage('/ports', isolate);
   static String timeline() => '#/timeline';
   static String vm() => '#/vm';
   static String vmConnect() => '#/vm-connect';
 }