[Files.app] Show dot files in the Drive volume.

chrome/browser/resources/file_manager/foreground/js/directory_contents.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.
 
 'use strict';
 
 /**
  * Scanner of the entries.
  * @constructor
  */
@@ skipping 305 matching lines @@
           entriesCallback(entries);
         successCallback();
       }.bind(this));
 };
 
 /**
  * This class manages filters and determines a file should be shown or not.
  * When filters are changed, a 'changed' event is fired.
  *
  * @param {MetadataCache} metadataCache Metadata cache service.
- * @param {boolean} showHidden If files starting with '.' are shown.
  * @constructor
  * @extends {cr.EventTarget}
  */
-function FileFilter(metadataCache, showHidden) {
+function FileFilter(metadataCache) {
   /**
    * @type {MetadataCache}
    * @private
    */
   this.metadataCache_ = metadataCache;
 
   /**
    * @type Object.<string, Function>
    * @private
    */
   this.filters_ = {};
-  this.setFilterHidden(!showHidden);
 
   // Do not show entries marked as 'deleted'.
   this.addFilter('deleted', function(entry) {
     var internal = this.metadataCache_.getCached(entry, 'internal');
     return !(internal && internal.deleted);
   }.bind(this));
 }
 
 /*
  * FileFilter extends cr.EventTarget.
@@ skipping 12 matching lines @@
 
 /**
  * @param {string} name Filter identifier.
  */
 FileFilter.prototype.removeFilter = function(name) {
   delete this.filters_[name];
   cr.dispatchSimpleEvent(this, 'changed');
 };
 
 /**
- * @param {boolean} value If do not show hidden files.
- */
-FileFilter.prototype.setFilterHidden = function(value) {
-  if (value) {
-    this.addFilter(
-        'hidden',
-        function(entry) { return entry.name.substr(0, 1) !== '.'; }
-    );
-  } else {
-    this.removeFilter('hidden');
-  }
-};
-
-/**
- * @return {boolean} If the files with names starting with "." are not shown.
- */
-FileFilter.prototype.isFilterHiddenOn = function() {
-  return 'hidden' in this.filters_;
-};
-
-/**
  * @param {Entry} entry File entry.
  * @return {boolean} True if the file should be shown, false otherwise.
  */
 FileFilter.prototype.filter = function(entry) {
   for (var name in this.filters_) {
     if (!this.filters_[name](entry))
       return false;
   }
   return true;
 };
@@ skipping 359 matching lines @@
     context, fakeDirectoryEntry, driveDirectoryEntry, query, searchType) {
   return new DirectoryContents(
       context,
       true,  // Search
       fakeDirectoryEntry,
       driveDirectoryEntry,
       function() {
         return new DriveMetadataSearchContentScanner(query, searchType);
       });
 };