Port metrics to RPC

runtime/observatory/lib/src/elements/metrics.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 metrics;
 
-import 'dart:async';
 import 'dart:html';
 import 'observatory_element.dart';
 import 'package:observatory/app.dart';
 import 'package:observatory/service.dart';
 import 'package:polymer/polymer.dart';
 
 @CustomTag('metrics-page')
 class MetricsPageElement extends ObservatoryElement {
   MetricsPageElement.created() : super.created();
 
   @observable MetricsPage page;
   @observable Isolate isolate;
   @observable ServiceMetric selectedMetric;
 
   void _autoPickSelectedMetric() {
     if (selectedMetric != null) {
       return;
     }
     // Attempt to pick the last selected metric.
     if ((isolate != null) && (page != null) &&
         (page.selectedMetricId != null)) {
       selectedMetric = isolate.dartMetrics[page.selectedMetricId];
       if (selectedMetric == null) {
-        selectedMetric = isolate.vmMetrics[page.selectedMetricId];
+        selectedMetric = isolate.nativeMetrics[page.selectedMetricId];
       }
     }
     if ((selectedMetric == null) && (isolate != null)) {
       var values = isolate.dartMetrics.values;
       if (values != null) {
         // Fall back and pick the first isolate metric.
         selectedMetric = values.first;
       }
     }
   }
@@ skipping 12 matching lines @@
 
   void refresh(var done) {
     isolate.refreshMetrics().whenComplete(done);
   }
 
   void selectMetric(Event e, var detail, Element target) {
     String id = target.attributes['data-id'];
     selectedMetric = isolate.dartMetrics[id];
     if (selectedMetric == null) {
       // Check VM metrics.
-      selectedMetric = isolate.vmMetrics[id];
+      selectedMetric = isolate.nativeMetrics[id];
     }
     if (selectedMetric != null) {
       page.selectedMetricId = id;
     } else {
       page.selectedMetricId = null;
     }
   }
 }
 
 @CustomTag('metric-details')
@@ skipping 115 matching lines @@
       _table.addTimeOfDayValue(sample.time, sample.value);
     }
   }
 
   metricChanged(oldValue) {
     if (oldValue != metric) {
       _setupInitialDataTable();
     }
   }
 }