Rename ValueSet* to HistogramSet*.

tracing/tracing/extras/chrome/estimated_input_latency.html

Index: tracing/tracing/extras/chrome/estimated_input_latency.html
diff --git a/tracing/tracing/extras/chrome/estimated_input_latency.html b/tracing/tracing/extras/chrome/estimated_input_latency.html
index 6a2e907ec41a62d664844cad59f7e265eb60f443..8afe06540a856e0316d9ca5fc32d2d003bf168b1 100644
--- a/tracing/tracing/extras/chrome/estimated_input_latency.html
+++ b/tracing/tracing/extras/chrome/estimated_input_latency.html
@@ -6,7 +6,7 @@ found in the LICENSE file.
 -->
 
 <link rel="import" href="/tracing/metrics/system_health/loading_metric.html">
-<link rel="import" href="/tracing/value/value_set.html">
+<link rel="import" href="/tracing/value/histogram_set.html">
 
 <script>
 'use strict';
@@ -41,7 +41,7 @@ tr.exportTo('tr.e.chrome', function() {
     // update this function to use the new LoadExpectation rather
     // than calling loading_metric.html.
 
-    var values = new tr.v.ValueSet();
+    var values = new tr.v.HistogramSet();
     tr.metrics.sh.loadingMetric(values, model);
     var ttiValues = values.getValuesNamed('timeToFirstInteractive');
     var interactiveTimestampsMap = new Map();