Find feature for tracing, at long last.

chrome/browser/resources/tracing/profiling_view.css

 /* Copyright (c) 2012 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file. */
 
 .profiling-view {
   -webkit-box-flex: 1;
   -webkit-box-orient: vertical;
   display: -webkit-box;
   padding: 0;
 }
 
-.profiling-view > .control {
-  border-bottom: 1px solid #555;
-  display: -webkit-box;
-}
-
-.profiling-view > .control > span {
-  padding-left: 5px;
-  padding-right: 10px;
-}
-
-.profiling-view > .control > button {
-  font-size: 75%;
-  height: 20px;
-  min-height: 10px;
-}
-
 .profiling-view > .container {
   -webkit-box-flex: 1;
   display: -webkit-box;
 }
 
 .profiling-overlay {
   -webkit-box-orient: vertical;
   display: -webkit-box;
   text-align: center;
 }
 
 .profiling-overlay .raw-text {
   -webkit-box-flex: 1;
   overflow: auto;
   wrap: none;
 }
 
 .profiling-overlay .error {
   border: 1px solid red;
   text-align: center;
 }