Revert 248153 "[Files.app] Show dot files in the Drive volume."

trunk/src/chrome/browser/resources/file_manager/foreground/js/directory_contents.js

Index: trunk/src/chrome/browser/resources/file_manager/foreground/js/directory_contents.js
===================================================================
--- trunk/src/chrome/browser/resources/file_manager/foreground/js/directory_contents.js	(revision 248206)
+++ trunk/src/chrome/browser/resources/file_manager/foreground/js/directory_contents.js	(working copy)
@@ -323,10 +323,11 @@
  * 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) {
+function FileFilter(metadataCache, showHidden) {
   /**
    * @type {MetadataCache}
    * @private
@@ -338,6 +339,7 @@
    * @private
    */
   this.filters_ = {};
+  this.setFilterHidden(!showHidden);
 
   // Do not show entries marked as 'deleted'.
   this.addFilter('deleted', function(entry) {
@@ -370,6 +372,27 @@
 };
 
 /**
+ * @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.
  */