[Cleanup] Files.app: add missing periods on comments.

chrome/browser/resources/file_manager/js/file_manager_pyauto.js

 // Copyright (c) 2012 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.
 
 /**
  * pyautoAPI object provides a set of functions used by PyAuto tests
  * to drive the file manager.
  *
  * Refer to chrome/test/functional/chromeos_file_browser.py for examples
  * of how this API is used.
  *
  * TODO(olege): Fix style warnings.
  */
 var pyautoAPI = {
   /**
    * Add the item with given name to the current selection.
-   * @param {string} name Name of the item to add to selection
+   * @param {string} name Name of the item to add to selection.
    */
   addItemToSelection: function(name) {
     var entryExists = false;
     var dm = fileManager.directoryModel_.getFileList();
     for (var i = 0; i < dm.length; i++) {
       if (dm.item(i).name == name) {
         fileManager.currentList_.selectionModel.setIndexSelected(i, true);
         fileManager.currentList_.scrollIndexIntoView(i);
         fileManager.focusCurrentList_();
         entryExists = true;
@@ skipping 207 matching lines @@
     window.domAutomationController.send(JSON.stringify(value));
   },
 
   /**
    * Callback function signalling completion of operation.
    */
   sendDone_: function() {
     window.domAutomationController.send('done');
   }
 };