Quick-fixes to about:tracing following move

chrome/browser/resources/tracing/timeline_track.js

 // Copyright (c) 2011 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.
 
 
 /**
  * @fileoverview Renders an array of slices into the provided div,
  * using a child canvas element. Uses a FastRectRenderer to draw only
  * the visible slices.
  */
@@ skipping 397 matching lines @@
           loWX, hiWX,
           onPickHit);
     },
 
     /**
      * Find the index for the given slice.
      * @return {index} Index of the given slice, or undefined.
      * @private
      */
     indexOfSlice_: function(slice) {
-      var index = gpu.findLowIndexInSortedArray(this.slices_,
+      var index = tracing.findLowIndexInSortedArray(this.slices_,
           function(x) { return x.start; },
           slice.start);
       while (index < this.slices_.length &&
           slice.start == this.slices_[index].start &&
           slice.colorId != this.slices_[index].colorId) {
         index++;
       }
       return index < this.slices_.length ? index : undefined;
     },
 
@@ skipping 28 matching lines @@
       return index != undefined ? this.slices_[index] : undefined;
     },
 
   };
 
   return {
     TimelineSliceTrack: TimelineSliceTrack,
     TimelineThreadTrack: TimelineThreadTrack
   };
 });