Converted Observatory heap-profile element

runtime/observatory/lib/src/repositories/allocation_profile.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 repositories;
+
+class AllocationProfileRepository implements M.AllocationProfileRepository {
+  static const _api = '_getAllocationProfile';
+
+  Future<M.AllocationProfile> get(M.IsolateRef i, {bool gc: false,
+                                                   bool reset: false}) async {
+    assert(gc != null);
+    assert(reset != null);
+    S.Isolate isolate = i as S.Isolate;
+    assert(isolate != null);
+    var params = {};
+    if (gc == true) {
+      params['gc'] = 'full';
+    }
+    if (reset == true) {
+      params['reset'] = true;
+    }
+    final response = await isolate.invokeRpc(_api, params);
+    isolate.updateHeapsFromMap(response['heaps']);
+    for (S.ServiceMap clsAllocations in response['members']) {
+      S.Class cls = clsAllocations['class'];
+      if (cls == null) {
+        continue;
+      }
+      cls.newSpace.update(clsAllocations['new']);
+      cls.oldSpace.update(clsAllocations['old']);
+    }
+    return new AllocationProfile(response);
+  }
+}