Find feature for tracing, at long last.

chrome/browser/resources/tracing/kernel_trace_viewer.html

Index: chrome/browser/resources/tracing/kernel_trace_viewer.html
diff --git a/chrome/browser/resources/tracing/kernel_trace_viewer.html b/chrome/browser/resources/tracing/kernel_trace_viewer.html
index 39482ef1beb802c5ef5cda64c92d05744729f2c4..5ff986b846bf6e94bfb91c1dcd6a00d029176163 100644
--- a/chrome/browser/resources/tracing/kernel_trace_viewer.html
+++ b/chrome/browser/resources/tracing/kernel_trace_viewer.html
@@ -18,6 +18,7 @@ found in the LICENSE file.
 <script src="trace_event_importer.js"></script>
 <script src="sorted_array_utils.js"></script>
 <script src="measuring_stick.js"></script>
+<script src="overlay.js"></script>
 <script src="timeline.js"></script>
 <script src="timeline_track.js"></script>
 <script src="timeline_view.js"></script>