Rename ValueSet* to HistogramSet*.

tracing/tracing/metrics/cpu_process_metric_test.html

Index: tracing/tracing/metrics/cpu_process_metric_test.html
diff --git a/tracing/tracing/metrics/cpu_process_metric_test.html b/tracing/tracing/metrics/cpu_process_metric_test.html
index cc0c8c103ced4c8efceb2da64f00d0f3bd42a808..dba082bc47bf958ab377876d61e74b76bb1169b3 100644
--- a/tracing/tracing/metrics/cpu_process_metric_test.html
+++ b/tracing/tracing/metrics/cpu_process_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/cpu_process_metric.html">
-<link rel="import" href="/tracing/value/value_set.html">
+<link rel="import" href="/tracing/value/histogram_set.html">
 
 <script>
 'use strict';
@@ -20,7 +20,7 @@ tr.b.unittest.testSuite(function() {
   }
 
   test('cpuProcessMetric_noData', function() {
-    var values = new tr.v.ValueSet();
+    var values = new tr.v.HistogramSet();
     var events = [
       {name: 'a', args: {}, pid: 52, ts: 524, cat: 'foo', tid: 53, ph: 'B'},
       {name: 'a', args: {}, pid: 52, ts: 560, cat: 'foo', tid: 53, ph: 'B'}
@@ -30,7 +30,7 @@ tr.b.unittest.testSuite(function() {
   });
 
   test('cpuProcessMetric_singleSnapshots', function() {
-    var values = new tr.v.ValueSet();
+    var values = new tr.v.HistogramSet();
     var events = [
         {
           'name': 'CPUSnapshots',
@@ -65,7 +65,7 @@ tr.b.unittest.testSuite(function() {
   });
 
   test('cpuProcessMetric_multipleSnapshots', function() {
-    var values = new tr.v.ValueSet();
+    var values = new tr.v.HistogramSet();
     var events = [
         {
           'name': 'CPUSnapshots',