DevTools: lighten the workspaces settings ui a bit.

third_party/WebKit/Source/devtools/front_end/settings/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 269 matching lines @@
     super(Common.UIString('Workspace'), 'workspace-tab-content');
     Workspace.isolatedFileSystemManager.addEventListener(
         Workspace.IsolatedFileSystemManager.Events.FileSystemAdded, this._fileSystemAdded, this);
     Workspace.isolatedFileSystemManager.addEventListener(
         Workspace.IsolatedFileSystemManager.Events.FileSystemRemoved, this._fileSystemRemoved, this);
 
     var folderExcludePatternInput = this._createFolderExcludePatternInput();
     folderExcludePatternInput.classList.add('folder-exclude-pattern');
     this.containerElement.appendChild(folderExcludePatternInput);
 
+    if (Runtime.experiments.isEnabled('persistence2')) {
+      var div = this.containerElement.createChild('div', 'settings-info-message');
+      div.createTextChild(
+          Common.UIString('Mappings are inferred automatically via the \'Persistence 2.0\' experiment. Please '));
+      div.appendChild(UI.createExternalLink(
+          'https://bugs.chromium.org/p/chromium/issues/entry?template=Defect%20report%20from%20user&components=Platform%3EDevTools%3EAuthoring&comment=DevTools%20failed%20to%20link%20network%20resource%20to%20filesystem.%0A%0APlatform%3A%20%3CLinux%2FWin%2FMac%3E%0AChrome%20version%3A%20%3Cyour%20chrome%20version%3E%0A%0AWhat%20are%20the%20details%20of%20your%20project%3F%0A-%20Source%20code%20(if%20any)%3A%20http%3A%2F%2Fgithub.com%2Fexample%2Fexample%0A-%20Build%20System%3A%20gulp%2Fgrunt%2Fwebpack%2Frollup%2F...%0A-%20HTTP%20server%3A%20node%20HTTP%2Fnginx%2Fapache...%0A%0AAssets%20failed%20to%20link%20(or%20incorrectly%20linked)%3A%0A1.%0A2.%0A3.%0A%0AIf%20possible%2C%20please%20attach%20a%20screenshot%20of%20network%20sources%20navigator%20which%20should%0Ashow%20which%20resources%20failed%20to%20map',
+          Common.UIString('report')));
+      div.createTextChild(Common.UIString(' any bugs.'));
+    }
+
     this._fileSystemsListContainer = this.containerElement.createChild('div', '');
 
     this.containerElement.appendChild(
         UI.createTextButton(Common.UIString('Add folder\u2026'), this._addFileSystemClicked.bind(this)));
 
     /** @type {!Map<string, !Element>} */
     this._elementByPath = new Map();
 
     /** @type {!Map<string, !Settings.EditFileSystemView>} */
     this._mappingViewByPath = new Map();
@@ skipping 235 matching lines @@
         return;
       var settings = extension.descriptor()['settings'];
       if (settings && settings.indexOf(setting.name) !== -1) {
         InspectorFrontendHost.bringToFront();
         Settings.SettingsScreen._showSettingsScreen(extension.descriptor()['id']);
         success = true;
       }
     }
   }
 };