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

tracing/tracing/extras/chrome/estimated_input_latency_test.html

Index: tracing/tracing/extras/chrome/estimated_input_latency_test.html
diff --git a/tracing/tracing/extras/chrome/estimated_input_latency_test.html b/tracing/tracing/extras/chrome/estimated_input_latency_test.html
index 1edf5f49337f5a60559637712605ff2a6a2955ce..da8e3d0847a051922f9e87838a171f7a2137f46a 100644
--- a/tracing/tracing/extras/chrome/estimated_input_latency_test.html
+++ b/tracing/tracing/extras/chrome/estimated_input_latency_test.html
@@ -178,7 +178,7 @@ tr.b.unittest.testSuite(function() {
     var windows = getPostInteractiveTaskWindows(
         interactiveTimestamps, navStartTimestamps, traceEndTimestamp);
     assert.equal(windows.length, 1);
-    assertRangeEquals(windows[0], tr.b.Range.fromExplicitRange(50, 100));
+    assertRangeEquals(windows[0], tr.b.math.Range.fromExplicitRange(50, 100));
   });
 
   test('multiplePostInteractiveWindows', () => {
@@ -188,8 +188,8 @@ tr.b.unittest.testSuite(function() {
     var windows = getPostInteractiveTaskWindows(
         interactiveTimestamps, navStartTimestamps, traceEndTimestamp);
     assert.equal(windows.length, 2);
-    assertRangeEquals(windows[0], tr.b.Range.fromExplicitRange(50, 70));
-    assertRangeEquals(windows[1], tr.b.Range.fromExplicitRange(80, 100));
+    assertRangeEquals(windows[0], tr.b.math.Range.fromExplicitRange(50, 70));
+    assertRangeEquals(windows[1], tr.b.math.Range.fromExplicitRange(80, 100));
   });
 
   test('postInteractiveWindowWithOneNavigationNeverReachingInteractive', () => {
@@ -199,8 +199,8 @@ tr.b.unittest.testSuite(function() {
     var windows = getPostInteractiveTaskWindows(
         interactiveTimestamps, navStartTimestamps, traceEndTimestamp);
     assert.equal(windows.length, 2);
-    assertRangeEquals(windows[0], tr.b.Range.fromExplicitRange(50, 60));
-    assertRangeEquals(windows[1], tr.b.Range.fromExplicitRange(90, 100));
+    assertRangeEquals(windows[0], tr.b.math.Range.fromExplicitRange(50, 60));
+    assertRangeEquals(windows[1], tr.b.math.Range.fromExplicitRange(90, 100));
   });
 
   test('twoInteractiveTimeStampsWithNoNavStartInBetween', () => {
@@ -212,40 +212,40 @@ tr.b.unittest.testSuite(function() {
   });
 
   test('expectedQueueingTime_noTasks', () => {
-    var window = tr.b.Range.fromExplicitRange(0, 1000);
+    var window = tr.b.math.Range.fromExplicitRange(0, 1000);
     assert.closeTo(0, expectedQueueingTime(window, []), 1e-6);
   });
 
   test('expectedQueueingTime_singleTask', () => {
-    var window = tr.b.Range.fromExplicitRange(0, 1000);
+    var window = tr.b.math.Range.fromExplicitRange(0, 1000);
     assert.closeTo(1000 / 2,
         expectedQueueingTime(window, [{start: 0, end: 1000}]),
         1e-6);
   });
 
   test('expectedQueueingTime_singleTaskStartingBeforeWindow', () => {
-    var window = tr.b.Range.fromExplicitRange(0, 1000);
+    var window = tr.b.math.Range.fromExplicitRange(0, 1000);
     assert.closeTo(1000 / 2,
         expectedQueueingTime(window, [{start: -1, end: 1000}]),
         1e-6);
   });
 
   test('expectedQueueingTime_singleTaskEndingAfterWindow', () => {
-    var window = tr.b.Range.fromExplicitRange(0, 1000);
+    var window = tr.b.math.Range.fromExplicitRange(0, 1000);
     assert.closeTo(1500,
         expectedQueueingTime(window, [{start: 0, end: 2000}]),
         1e-6);
   });
 
   test('expectedQueueingTime_singleTaskInsideWindow', () => {
-    var window = tr.b.Range.fromExplicitRange(0, 1000);
+    var window = tr.b.math.Range.fromExplicitRange(0, 1000);
     assert.closeTo(10 / 1000 * 10 / 2,
         expectedQueueingTime(window, [{start: 500, end: 510}]),
         1e-6);
   });
 
   test('expectedQueueingTime_twoTasksInsideWindow', () => {
-    var window = tr.b.Range.fromExplicitRange(0, 1000);
+    var window = tr.b.math.Range.fromExplicitRange(0, 1000);
     assert.closeTo(10 / 1000 * 10 / 2 + 100 / 1000 * 100 / 2,
         expectedQueueingTime(window,
             [{start: 500, end: 510}, {start: 600, end: 700}]),
@@ -253,7 +253,7 @@ tr.b.unittest.testSuite(function() {
   });
 
   test('expectedQueueingTime_twoTasksPartiallyInsideWindow', () => {
-    var window = tr.b.Range.fromExplicitRange(0, 1000);
+    var window = tr.b.math.Range.fromExplicitRange(0, 1000);
     assert.closeTo(10 / 1000 * 10 / 2 + 100 / 1000 * (100 + 200) / 2,
         expectedQueueingTime(window,
             [{start: 500, end: 510}, {start: 900, end: 1100}]),
@@ -261,7 +261,7 @@ tr.b.unittest.testSuite(function() {
   });
 
   test('weightedExpectedQueueingTime', () => {
-    var window = tr.b.Range.fromExplicitRange(0, 1000);
+    var window = tr.b.math.Range.fromExplicitRange(0, 1000);
     assert.closeTo(1000 / 2 * 0.7,
         weightedExpectedQueueingTime(window,
             [{start: 0, end: 1000, weight: 0.7}]),