[refactor] Split up SourceTracker into SourceTracker + EventsTracker.

chrome/browser/resources/net_internals/log_view_painter.js

 // 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.
 
 /**
  * TODO(eroman): This needs better presentation, and cleaner code. This
  *               implementation is more of a transitionary step as
  *               the old net-internals is replaced.
  */
 
@@ skipping 61 matching lines @@
       var mainCell = tablePrinter.addCell(eventText);
       mainCell.allowOverflow = true;
     }
 
     // Output the extra parameters.
     if (entry.orig.params != undefined) {
       // Those 5 skipped cells are: two for "t=", and three for "st=".
       tablePrinter.setNewRowCellIndent(5 + entry.getDepth());
       addRowsForExtraParams(tablePrinter,
                             entry.orig,
-                            g_browser.sourceTracker.getSecurityStripping());
+                            SourceTracker.getInstance().getSecurityStripping());
       tablePrinter.setNewRowCellIndent(0);
     }
   }
 
   // Format the table for fixed-width text.
   tablePrinter.toText(0, parent);
 }
 
 /**
  * |hexString| must be a string of hexadecimal characters with no whitespace,
@@ skipping 375 matching lines @@
   var result = [];
   for (var i = 0; i < modes.length; ++i)
     result.push(indentLines('(' + (i + 1) + ') ', modes[i]));
 
   return result.join('\n');
 };
 
 // End of anonymous namespace.
 })();