DevTools: render console level filter as drop box.

third_party/WebKit/Source/devtools/front_end/timeline/TimelineTreeView.js

 // Copyright 2015 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.
 /**
  * @unrestricted
  */
 Timeline.TimelineTreeView = class extends UI.VBox {
   constructor() {
     super();
     this.element.classList.add('timeline-tree-view');
@@ skipping 947 matching lines @@
     this._textFilterUI = new UI.TextFilterUI();
     this._textFilterUI.addEventListener(UI.FilterUI.Events.FilterChanged, textFilterChanged, this);
     this._filterBar.addFilter(this._textFilterUI);
 
     var durationOptions = [];
     for (var durationMs of Timeline.EventsTimelineTreeView.Filters._durationFilterPresetsMs) {
       var durationOption = {};
       if (!durationMs) {
         durationOption.label = Common.UIString('All');
         durationOption.title = Common.UIString('Show all records');
+        durationOption.default = true;
       } else {
         durationOption.label = Common.UIString('\u2265 %dms', durationMs);
         durationOption.title = Common.UIString('Hide records shorter than %dms', durationMs);
       }
-      durationOption.value = durationMs;
+      durationOption.value = String(durationMs);
       durationOptions.push(durationOption);
     }
     var durationFilterUI = new UI.ComboBoxFilterUI(durationOptions);
     durationFilterUI.addEventListener(UI.FilterUI.Events.FilterChanged, durationFilterChanged, this);
     this._filterBar.addFilter(durationFilterUI);
 
     var categoryFiltersUI = {};
     var categories = Timeline.TimelineUIUtils.categories();
     for (var categoryName in categories) {
       var category = categories[categoryName];
@@ skipping 163 matching lines @@
 
   _onSelectionChanged() {
     this.dispatchEventToListeners(Timeline.TimelineStackView.Events.SelectionChanged);
   }
 };
 
 /** @enum {symbol} */
 Timeline.TimelineStackView.Events = {
   SelectionChanged: Symbol('SelectionChanged')
 };