Refactor NumericBuilder to HistogramBinBoundaries.

tracing/tracing/value/ui/related_value_set_span_test.html

Index: tracing/tracing/value/ui/related_value_set_span_test.html
diff --git a/tracing/tracing/value/ui/related_value_set_span_test.html b/tracing/tracing/value/ui/related_value_set_span_test.html
index 61e23999dedebcd92596ae3d59eec6f45e8e9bde..538bdf230fcced2835cee40a7d2c001921878e3a 100644
--- a/tracing/tracing/value/ui/related_value_set_span_test.html
+++ b/tracing/tracing/value/ui/related_value_set_span_test.html
@@ -14,13 +14,11 @@ found in the LICENSE file.
 'use strict';
 
 tr.b.unittest.testSuite(function() {
-  var TEST_NUMERIC_BUILDER = tr.v.NumericBuilder.createLinear(
-      tr.v.Unit.byName.timeDurationInMs, tr.b.Range.fromExplicitRange(0, 1000),
-      10);
-
   test('instantiate_RelatedValueSet', function() {
-    var aValue = new tr.v.NumericValue('a', TEST_NUMERIC_BUILDER.build());
-    var bValue = new tr.v.NumericValue('b', TEST_NUMERIC_BUILDER.build());
+    var aValue = new tr.v.NumericValue('a', new tr.v.Histogram(
+        tr.v.Unit.byName.unitlessNumber));
+    var bValue = new tr.v.NumericValue('b', new tr.v.Histogram(
+        tr.v.Unit.byName.unitlessNumber));
     var diagnostic = new tr.v.d.RelatedValueSet([aValue, bValue]);
     var span = tr.v.ui.createDiagnosticSpan(diagnostic);
     assert.strictEqual('TR-V-UI-RELATED-VALUE-SET-SPAN', span.tagName);