Make about:net-internal's filters work a bit better.

chrome/browser/resources/net_internals/source_tracker.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.
 
 var SourceTracker = (function() {
   'use strict';
 
   /**
    * This class keeps track of all NetLog events, grouped into per-source
    * streams. It receives events from EventsTracker, and passes
@@ skipping 138 matching lines @@
     getPrivacyStripping: function() {
       return this.privacyStripping_;
     },
 
     /**
      * Adds a listener of SourceEntries. |observer| will be called back when
      * SourceEntries are added or modified, source entries are deleted, or
      * privacy stripping changes:
      *
      *   observer.onSourceEntriesUpdated(sourceEntries)
-     *   ovserver.onAllSourceEntriesDeleted()
+     *   observer.onAllSourceEntriesDeleted()
      *   observer.onPrivacyStrippingChanged()
      */
     addSourceEntryObserver: function(observer) {
       this.sourceEntryObservers_.push(observer);
     }
   };
 
   return SourceTracker;
 })();