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

tracing/tracing/base/math/range_test.html

Index: tracing/tracing/base/math/range_test.html
diff --git a/tracing/tracing/base/range_test.html b/tracing/tracing/base/math/range_test.html
similarity index 99%
rename from tracing/tracing/base/range_test.html
rename to tracing/tracing/base/math/range_test.html
index e404f732c8ca842fd05793c69a989396f65dd663..37b1c4fd6136fc27f4ee7caa96564ef9cb3140bc 100644
--- a/tracing/tracing/base/range_test.html
+++ b/tracing/tracing/base/math/range_test.html
@@ -5,13 +5,13 @@ Use of this source code is governed by a BSD-style license that can be
 found in the LICENSE file.
 -->
 
-<link rel="import" href="/tracing/base/range.html">
+<link rel="import" href="/tracing/base/math/range.html">
 
 <script>
 'use strict';
 
 tr.b.unittest.testSuite(function() {
-  var Range = tr.b.Range;
+  var Range = tr.b.math.Range;
 
   test('addValue', function() {
     var range = new Range();