Use javascript strict mode throughout a number of net-internals files.

chrome/browser/resources/net_internals/events_view.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.
 
 /**
  * EventsView displays a filtered list of all events sharing a source, and
  * a details pane for the selected sources.
  *
  *  +----------------------++----------------+
  *  |      filter box      ||                |
  *  +----------------------+|                |
  *  |                      ||                |
  *  |                      ||                |
  *  |                      ||                |
  *  |                      ||                |
  *  |     source list      ||    details     |
  *  |                      ||    view        |
  *  |                      ||                |
  *  |                      ||                |
  *  |                      ||                |
  *  |                      ||                |
  *  +----------------------++                |
  *  |      action bar      ||                |
  *  +----------------------++----------------+
  */
+var EventsView = (function() {
+  'use strict';
 
-var EventsView = (function() {
   // IDs for special HTML elements in events_view.html
-  const TBODY_ID = 'events-view-source-list-tbody';
-  const FILTER_INPUT_ID = 'events-view-filter-input';
-  const FILTER_COUNT_ID = 'events-view-filter-count';
-  const DELETE_SELECTED_ID = 'events-view-delete-selected';
-  const DELETE_ALL_ID = 'events-view-delete-all';
-  const SELECT_ALL_ID = 'events-view-select-all';
-  const SORT_BY_ID_ID = 'events-view-sort-by-id';
-  const SORT_BY_SOURCE_TYPE_ID = 'events-view-sort-by-source';
-  const SORT_BY_DESCRIPTION_ID = 'events-view-sort-by-description';
-  const TAB_HANDLES_CONTAINER_ID = 'events-view-details-tab-handles';
-  const LOG_TAB_ID = 'events-view-details-log-tab';
-  const TIMELINE_TAB_ID = 'events-view-details-timeline-tab';
-  const DETAILS_LOG_BOX_ID = 'events-view-details-log-box';
-  const DETAILS_TIMELINE_BOX_ID = 'events-view-details-timeline-box';
-  const TOPBAR_ID = 'events-view-filter-box';
-  const MIDDLE_BOX_ID = 'events-view-source-list';
-  const BOTTOM_BAR_ID = 'events-view-action-box';
-  const SIZER_ID = 'events-view-splitter-box';
+  var TBODY_ID = 'events-view-source-list-tbody';
+  var FILTER_INPUT_ID = 'events-view-filter-input';
+  var FILTER_COUNT_ID = 'events-view-filter-count';
+  var DELETE_SELECTED_ID = 'events-view-delete-selected';
+  var DELETE_ALL_ID = 'events-view-delete-all';
+  var SELECT_ALL_ID = 'events-view-select-all';
+  var SORT_BY_ID_ID = 'events-view-sort-by-id';
+  var SORT_BY_SOURCE_TYPE_ID = 'events-view-sort-by-source';
+  var SORT_BY_DESCRIPTION_ID = 'events-view-sort-by-description';
+  var TAB_HANDLES_CONTAINER_ID = 'events-view-details-tab-handles';
+  var LOG_TAB_ID = 'events-view-details-log-tab';
+  var TIMELINE_TAB_ID = 'events-view-details-timeline-tab';
+  var DETAILS_LOG_BOX_ID = 'events-view-details-log-box';
+  var DETAILS_TIMELINE_BOX_ID = 'events-view-details-timeline-box';
+  var TOPBAR_ID = 'events-view-filter-box';
+  var MIDDLE_BOX_ID = 'events-view-source-list';
+  var BOTTOM_BAR_ID = 'events-view-action-box';
+  var SIZER_ID = 'events-view-splitter-box';
 
   // How soon after updating the filter list the counter should be updated.
-  const REPAINT_FILTER_COUNTER_TIMEOUT_MS = 0;
+  var REPAINT_FILTER_COUNTER_TIMEOUT_MS = 0;
 
   // We inherit from View.
   var superClass = View;
 
-  /**
+  /*
    * @constructor
    */
   function EventsView() {
+    assertFirstConstructorCall(EventsView);
+
     // Call superclass's constructor.
     superClass.call(this);
 
     // Initialize the sub-views.
     var leftPane = new TopMidBottomView(new DivView(TOPBAR_ID),
                                         new DivView(MIDDLE_BOX_ID),
                                         new DivView(BOTTOM_BAR_ID));
 
     this.detailsView_ = new DetailsView(TAB_HANDLES_CONTAINER_ID,
                                         LOG_TAB_ID,
@@ skipping 120 matching lines @@
      *   |remainingText| - |sourceText| with |directive|:parameter removed,
                            and excess whitespace deleted.
      *   |parameter| - the parameter itself.
      *
      * On failure, returns null.
      */
     parseDirective_: function(sourceText, directive) {
       // Adding a leading space allows a single regexp to be used, regardless of
       // whether or not the directive is at the start of the string.
       sourceText = ' ' + sourceText;
-      regExp = new RegExp('\\s+' + directive + ':(\\S*)\\s*', 'i');
-      matchInfo = regExp.exec(sourceText);
+      var regExp = new RegExp('\\s+' + directive + ':(\\S*)\\s*', 'i');
+      var matchInfo = regExp.exec(sourceText);
       if (matchInfo == null)
         return null;
 
       return {'remainingText': sourceText.replace(regExp, ' ').trim(),
               'parameter': matchInfo[1]};
     },
 
     /**
      * Just like parseDirective_, except can optionally be a '-' before or
      * the parameter, to negate it.  Before is more natural, after
@@ skipping 389 matching lines @@
       this.filterCount_.innerHTML = '';
       addTextNode(this.filterCount_,
                   this.numPostfilter_ + ' of ' + this.numPrefilter_);
     }
   };  // end of prototype.
 
   // ------------------------------------------------------------------------
   // Helper code for comparisons
   // ------------------------------------------------------------------------
 
-  COMPARISON_FUNCTION_TABLE = {
+  var COMPARISON_FUNCTION_TABLE = {
     // sort: and sort:- are allowed
     '': compareSourceId,
     'active': compareActive,
     'desc': compareDescription,
     'description': compareDescription,
     'duration': compareDuration,
     'id': compareSourceId,
     'source': compareSourceType,
     'type': compareSourceType
   };
@@ skipping 66 matching lines @@
     var source1Text = source1.getSourceTypeString();
     var source2Text = source2.getSourceTypeString();
     var compareResult = source1Text.localeCompare(source2Text);
     if (compareResult != 0)
       return compareResult;
     return compareSourceId(source1, source2);
   }
 
   return EventsView;
 })();