Rename ValueSet* to HistogramSet*.

tracing/tracing/metrics/v8/execution_metric_test.html

Index: tracing/tracing/metrics/v8/execution_metric_test.html
diff --git a/tracing/tracing/metrics/v8/execution_metric_test.html b/tracing/tracing/metrics/v8/execution_metric_test.html
index d582e5da3a334fcde8552a9f5327874eedd8a54a..f4d9cb683bda664d10c77e1ebb72dc797d4256af 100644
--- a/tracing/tracing/metrics/v8/execution_metric_test.html
+++ b/tracing/tracing/metrics/v8/execution_metric_test.html
@@ -8,7 +8,7 @@ found in the LICENSE file.
 <link rel="import" href="/tracing/core/test_utils.html">
 <link rel="import" href="/tracing/extras/importer/trace_event_importer.html">
 <link rel="import" href="/tracing/metrics/v8/execution_metric.html">
-<link rel="import" href="/tracing/value/value_set.html">
+<link rel="import" href="/tracing/value/histogram_set.html">
 
 <script>
 'use strict';
@@ -16,7 +16,7 @@ found in the LICENSE file.
 tr.b.unittest.testSuite(function() {
   test('executionMetricBasic', function() {
     var model = tr.c.TestUtils.newModel();
-    var values = new tr.v.ValueSet();
+    var values = new tr.v.HistogramSet();
 
     tr.metrics.v8.executionMetric(values, model);
 
@@ -61,7 +61,7 @@ tr.b.unittest.testSuite(function() {
     var model = tr.c.TestUtils.newModelWithEvents(JSON.stringify(events), {
       shiftWorldToZero: false
     });
-    var values = new tr.v.ValueSet();
+    var values = new tr.v.HistogramSet();
     tr.metrics.v8.executionMetric(values, model);
 
     var value = values.getValuesNamed('v8_execution_wall_total')[0];