Redo allocationprofile options

runtime/bin/vmservice/client/lib/src/elements/heap_profile.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.
 
 library heap_profile_element;
 
 import 'dart:html';
 import 'observatory_element.dart';
 import 'package:observatory/service.dart';
 import 'package:logging/logging.dart';
@@ skipping 223 matching lines @@
       profile = response;
     }).catchError((e, st) {
       Logger.root.info('$e $st');
     }).whenComplete(done);
   }
 
   void resetAccumulator(Event e, var detail, Node target) {
     if (profile == null) {
       return;
     }
-    profile.isolate.get('/allocationprofile/reset').then((ServiceMap response) {
+    var isolate = profile.isolate;
+    isolate.get('/allocationprofile?reset=true').then((ServiceMap response) {
       assert(response['type'] == 'AllocationProfile');
       profile = response;
     }).catchError((e, st) {
       Logger.root.info('$e $st');
     });
   }
 
   void profileChanged(oldValue) {
     _updateChartData();
     notifyPropertyChange(#formattedAverage, [], formattedAverage);
@@ skipping 23 matching lines @@
 
   @observable String formattedTotalCollectionTime(bool newSpace) {
     if (profile == null) {
       return '';
     }
     String space = newSpace ? 'new' : 'old';
     Map heap = profile['heaps'][space];
     return '${formatSeconds(heap['time'])} secs';
   }
 }