[tracing] Move math utilities from base into their own subdirectory (attempt 2)

tracing/tracing/ui/base/name_column_chart_test.html

Index: tracing/tracing/ui/base/name_column_chart_test.html
diff --git a/tracing/tracing/ui/base/name_column_chart_test.html b/tracing/tracing/ui/base/name_column_chart_test.html
index 4cdfde981ae6aab0221c10502c30a8b12f920c72..1278786ec330547edc6fcfe2f867f5354af0c271 100644
--- a/tracing/tracing/ui/base/name_column_chart_test.html
+++ b/tracing/tracing/ui/base/name_column_chart_test.html
@@ -44,7 +44,7 @@ tr.b.unittest.testSuite(function() {
       {x: 'dog', alpha: 50, beta: 125}
     ];
 
-    var r = new tr.b.Range();
+    var r = new tr.b.math.Range();
     r.addValue(20);
     r.addValue(40);
     chart.brushedRange = r;
@@ -92,7 +92,7 @@ tr.b.unittest.testSuite(function() {
     var currentMouseIndex = undefined;
 
     function updateBrushedRange() {
-      var r = new tr.b.Range();
+      var r = new tr.b.math.Range();
       r.min = Math.max(0, Math.min(mouseDownIndex, currentMouseIndex));
       r.max = Math.min(chart.data.length,
           Math.max(mouseDownIndex, currentMouseIndex) + 1);