DevTools: Add timestamp support in the console

Source/devtools/front_end/SettingsScreen.js

 /*
  * Copyright (C) 2013 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 322 matching lines @@
     WebInspector.settings.skipStackFramesSwitch.addChangeListener(this._skipStackFramesSwitchOrPatternChanged, this);
     WebInspector.settings.skipStackFramesPattern.addChangeListener(this._skipStackFramesSwitchOrPatternChanged, this);
 
     p = this._appendSection(WebInspector.UIString("Profiler"));
     p.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Show advanced heap snapshot properties"), WebInspector.settings.showAdvancedHeapSnapshotProperties));
     p.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("High resolution CPU profiling"), WebInspector.settings.highResolutionCpuProfiling));
 
     p = this._appendSection(WebInspector.UIString("Console"));
     p.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Log XMLHttpRequests"), WebInspector.settings.monitoringXHREnabled));
     p.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Preserve log upon navigation"), WebInspector.settings.preserveConsoleLog));
+    p.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Show timestamps"), WebInspector.settings.consoleTimestampsEnabled));
 
     if (WebInspector.openAnchorLocationRegistry.handlerNames.length > 0) {
         var handlerSelector = new WebInspector.HandlerSelector(WebInspector.openAnchorLocationRegistry);
         p = this._appendSection(WebInspector.UIString("Extensions"));
         p.appendChild(this._createCustomSetting(WebInspector.UIString("Open links in"), handlerSelector.element));
     }
 
     p = this._appendSection();
 
     var restoreDefaults = p.createChild("input", "settings-tab-text-button");
@@ skipping 754 matching lines @@
             var inputElement = this._addInputElements[columnId];
             inputElement.value = "";
         }
     },
 
     __proto__: WebInspector.SettingsList.prototype
 }
 
 /** @type {!WebInspector.SettingsController} */
 WebInspector.settingsController;