Rename the net_internals file names to include hyphens.

chrome/browser/resources/net_internals/source_entry.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.
 
 /**
  * A SourceEntry gathers all log entries with the same source.
  *
  * @constructor
  */
 function SourceEntry(logEntry, maxPreviousSourceId) {
@@ skipping 179 matching lines @@
 SourceEntry.prototype.getDuration = function() {
   var startTicks = this.entries_[0].time;
   var startTime = convertTimeTicksToDate(startTicks).getTime();
   var endTime = this.getEndTime();
   return endTime - startTime;
 };
 
 SourceEntry.prototype.printAsText = function() {
   return PrintSourceEntriesAsText(this.entries_);
 };