Keeping the current directory in URL.

chrome/browser/resources/file_manager/js/main.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.
 
 /**
  * Global fileManager reference useful for poking at from the console.
  */
 var fileManager;
 
 /**
  * Kick off the file manager dialog.
  *
  * Called by main.html after the dom has been parsed.
  */
 function init() {
-  var params;
-
   var rootPaths = ['Downloads', 'removable', 'archive', 'tmp'];
 
-  if (document.location.search) {
-    var json = decodeURIComponent(document.location.search.substr(1));
-    var params = JSON.parse(json);
-    console.log('params: ' + JSON.stringify(params));
-  }
-
   function onEntriesFound(filesystem, entries) {
     FileManager.initStrings(function () {
-      fileManager = new FileManager(document.body, filesystem, entries, params);
+      fileManager = new FileManager(document.body, filesystem, entries);
+      // We're ready to run.  Tests can monitor for this state with
+      // ExtensionTestMessageListener listener("ready");
+      // ASSERT_TRUE(listener.WaitUntilSatisfied());
+      chrome.test.sendMessage('ready');
     });
   }
 
   function onFileSystemFound(filesystem) {
     console.log('Found filesystem: ' + filesystem.name, filesystem);
 
     var entries = [];
 
     function onPathError(path, err) {
       console.error('Error locating root path: ' + path + ': ' + err);
@@ skipping 15 matching lines @@
     } else {
       util.forEachDirEntry(filesystem.root, onEntryFound);
     }
   };
 
   util.installFileErrorToString();
 
   console.log('Requesting filesystem.');
   chrome.fileBrowserPrivate.requestLocalFileSystem(onFileSystemFound);
 }