Added page to Observatory to display native memory allocation information.

runtime/observatory/lib/src/app/page.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 app;
 
 final _allocationProfileRepository = new AllocationProfileRepository();
 final _breakpointRepository = new BreakpointRepository();
 final _classSampleProfileRepository = new ClassSampleProfileRepository();
 final _classRepository = new ClassRepository();
 final _contextRepository = new ContextRepository();
 final _evalRepository = new EvalRepository();
 final _fieldRepository = new FieldRepository();
 final _functionRepository = new FunctionRepository();
 final _heapSnapshotRepository = new HeapSnapshotRepository();
 final _icdataRepository = new ICDataRepository();
 final _inboundReferencesRepository = new InboundReferencesRepository();
 final _instanceRepository = new InstanceRepository();
 final _isolateRepository = new IsolateRepository();
 final _isolateSampleProfileRepository = new IsolateSampleProfileRepository();
 final _libraryRepository = new LibraryRepository();
 final _megamorphicCacheRepository = new MegamorphicCacheRepository();
 final _metricRepository = new MetricRepository();
+final _nativeMemorySampleProfileRepository = new
+            NativeMemorySampleProfileRepository();
 final _objectRepository = new ObjectRepository();
 final _objectPoolRepository = new ObjectPoolRepository();
 final _objectstoreRepository = new ObjectStoreRepository();
 final _persistentHandlesRepository = new PersistentHandlesRepository();
 final _portsRepository = new PortsRepository();
 final _scriptRepository = new ScriptRepository();
 final _stronglyReachangleInstancesRepository =
     new StronglyReachableInstancesRepository();
 final _topRetainingInstancesRepository = new TopRetainingInstancesRepository();
 final _typeArgumentsRepository = new TypeArgumentsRepository();
@@ skipping 146 matching lines @@
     element = new FlagListElement(
         app.vm, app.events, new FlagsRepository(app.vm), app.notifications,
         queue: app.queue);
   }
 
   void _visit(Uri uri) {
     super._visit(uri);
   }
 }
 
+class NativeMemoryProfilerPage extends SimplePage {
+  NativeMemoryProfilerPage(app) : super('native-memory-profile',
+                                        'native-memory-profile', app);
+  @override
+  onInstall() {
+    if (element == null) {
+      element = new NativeMemoryProfileElement(app.vm, app.events,
+        app.notifications, _nativeMemorySampleProfileRepository,
+        queue: app.queue);
+    }
+    assert(element != null);
+  }
+
+  void _visit(Uri uri) {
+    super._visit(uri);
+  }
+}
+
 class InspectPage extends MatchingPage {
   InspectPage(app) : super('inspect', app);
 
   final DivElement container = new DivElement();
 
   void _visit(Uri uri) {
     super._visit(uri);
     getIsolate(uri).then((isolate) {
       var objectId = uri.queryParameters['objectId'];
       if (objectId == null) {
@@ skipping 650 matching lines @@
     element = new TimelinePageElement(app.vm, app.events, app.notifications,
         queue: app.queue);
   }
 
   void _visit(Uri uri) {
     assert(canVisit(uri));
   }
 
   bool canVisit(Uri uri) => uri.path == 'timeline';
 }