Mac bookmark mgr: Restore previously selected group when search field is cleared.

chrome/browser/cocoa/bookmark_manager_controller.h

 // Copyright (c) 2009 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.
 
 #import <Cocoa/Cocoa.h>
 #include "base/scoped_nsobject.h"
 #include "base/scoped_ptr.h"
 
 @class BookmarkItem;
 @class BookmarkTreeController;
@@ skipping 11 matching lines @@
   IBOutlet NSPopUpButton* actionButton_;
   IBOutlet BookmarkTreeController* groupsController_;
   IBOutlet BookmarkTreeController* listController_;
 
   Profile* profile_;  // weak
   scoped_ptr<BookmarkManagerBridge> bridge_;
   scoped_nsobject<NSMapTable> nodeMap_;
   scoped_nsobject<FakeBookmarkItem> root_;  // Root of tree
   scoped_nsobject<FakeBookmarkItem> searchGroup_;  // Search Results group item
   scoped_nsobject<FakeBookmarkItem> recentGroup_;  // Recently-Added group item
+  scoped_nsobject<BookmarkItem> preSearchGroup_;  // Selected before search
 }
 
 // Opens the bookmark manager window, or brings it to the front if it's open.
 + (BookmarkManagerController*)showBookmarkManager:(Profile*)profile;
 
 // The user Profile.
 @property (readonly) Profile* profile;
 
 // The BookmarkModel of the manager's Profile.
 @property (readonly) BookmarkModel* bookmarkModel;
@@ skipping 26 matching lines @@
 // Exposed only for unit tests.
 @interface BookmarkManagerController (UnitTesting)
 
 - (void)forgetNode:(const BookmarkNode*)node;
 @property (readonly) BookmarkTreeController* groupsController;
 @property (readonly) BookmarkTreeController* listController;
 @property (readonly) FakeBookmarkItem* searchGroup;
 @property (readonly) FakeBookmarkItem* recentGroup;
 
 @end