[Devtools] Removed timeline setting from network log settings

third_party/WebKit/Source/devtools/front_end/common/Settings.js

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 673 matching lines @@
     visibleColumnSettings.remove();
   }
 
   _updateVersionFrom19To20() {
     var oldSetting = Common.settings.createSetting('InspectorView.panelOrder', {});
     var newSetting = Common.settings.createSetting('panel-tabOrder', {});
     newSetting.set(oldSetting.get());
     oldSetting.remove();
   }
 
+  _updateVersionFrom20To21() {
+    var networkColumns = Common.settings.createSetting('networkLogColumns', {});
+    var columns = /** @type {!Object} */ (networkColumns.get());
+    delete columns['timeline'];
+    delete columns['waterfall'];
+    networkColumns.set(columns);
+  }
+
   _migrateSettingsFromLocalStorage() {
     // This step migrates all the settings except for the ones below into the browser profile.
     var localSettings = new Set([
       'advancedSearchConfig', 'breakpoints', 'consoleHistory', 'domBreakpoints', 'eventListenerBreakpoints',
       'fileSystemMapping', 'lastSelectedSourcesSidebarPaneTab', 'previouslyViewedFiles', 'savedURLs',
       'watchExpressions', 'workspaceExcludedFolders', 'xhrBreakpoints'
     ]);
     if (!window.localStorage)
       return;
 
@@ skipping 12 matching lines @@
    */
   _clearBreakpointsWhenTooMany(breakpointsSetting, maxBreakpointsCount) {
     // If there are too many breakpoints in a storage, it is likely due to a recent bug that caused
     // periodical breakpoints duplication leading to inspector slowness.
     if (breakpointsSetting.get().length > maxBreakpointsCount)
       breakpointsSetting.set([]);
   }
 };
 
 Common.VersionController._currentVersionName = 'inspectorVersion';
-Common.VersionController.currentVersion = 20;
+Common.VersionController.currentVersion = 21;
 
 /**
  * @type {!Common.Settings}
  */
 Common.settings;
 
 /**
  * @param {string} settingName
  * @return {!Common.Setting}
  */
 Common.moduleSetting = function(settingName) {
   return Common.settings.moduleSetting(settingName);
 };
 
 /**
  * @param {string} settingName
  * @return {!Common.Setting}
  */
 Common.settingForTest = function(settingName) {
   return Common.settings.settingForTest(settingName);
 };