filemanager: Show Drive related gear menu for the sidebar "Shared with me", "Recent", "Offline".

chrome/browser/resources/file_manager/js/file_manager.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';
 
 /**
  * This variable is checked in SelectFileDialogExtensionBrowserTest.
  * @type {number}
  */
@@ skipping 1646 matching lines @@
       this.table_.updateFileMetadata(leadListItem, leadEntry);
     }
     this.currentList_.restoreLeadItem(leadListItem);
   };
 
   /**
    * @return {boolean} True if the current directory content is from Google
    *     Drive.
    */
   FileManager.prototype.isOnDrive = function() {
-    return this.directoryModel_.getCurrentRootType() === RootType.DRIVE ||
-           this.directoryModel_.getCurrentRootType() === RootType.DRIVE_OFFLINE;
+    var rootType = this.directoryModel_.getCurrentRootType();
+    return rootType === RootType.DRIVE ||
+           rootType === RootType.DRIVE_SHARED_WITH_ME ||
+           rootType === RootType.DRIVE_RECENT ||
+           rootType === RootType.DRIVE_OFFLINE;
   };
 
   /**
    * @return {boolean} True if the ctrl key is pressed now.
    */
   FileManager.prototype.isCtrlKeyPressed = function() {
     return this.ctrlKeyPressed_;
   };
 
   /**
@@ skipping 406 matching lines @@
   FileManager.prototype.updateSearchBoxOnDirChange_ = function() {
     if (!this.searchBox_.disabled)
       this.searchBox_.value = '';
   };
 
   /**
    * Update the gear menu.
    * @private
    */
   FileManager.prototype.updateGearMenu_ = function() {
-    this.syncButton.hidden = !this.isOnDrive();
-    this.hostedButton.hidden = !this.isOnDrive();
+    var hideItemsForDrive = !this.isOnDrive();
+    this.syncButton.hidden = hideItemsForDrive;
+    this.hostedButton.hidden = hideItemsForDrive;
     this.document_.getElementById('drive-separator').hidden =
-        !this.isOnDrive();
+        hideItemsForDrive;
 
     // If volume has changed, then fetch remaining space data.
     if (this.previousRootUrl_ != this.directoryModel_.getCurrentMountPointUrl())
       this.refreshRemainingSpace_(true);  // Show loading caption.
 
     this.previousRootUrl_ = this.directoryModel_.getCurrentMountPointUrl();
   };
 
   /**
    * Refreshes space info of the current volume.
@@ skipping 1401 matching lines @@
    * Set the flag expressing whether the ctrl key is pressed or not.
    * @param {boolean} flag New value of the flag
    * @private
    */
   FileManager.prototype.setCtrlKeyPressed_ = function(flag) {
     this.ctrlKeyPressed_ = flag;
     this.document_.querySelector('#drive-clear-local-cache').canExecuteChange();
     this.document_.querySelector('#drive-reload').canExecuteChange();
   };
 })();