Add profile selector menu to app list.

ui/app_list/cocoa/apps_search_box_controller.h

 // Copyright 2013 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.
 
 #ifndef UI_APP_LIST_COCOA_APPS_SEARCH_BOX_CONTROLLER_H_
 #define UI_APP_LIST_COCOA_APPS_SEARCH_BOX_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/app_list/app_list_export.h"
 
 namespace app_list {
 class AppListMenu;
+class AppListModel;
 class AppListViewDelegate;
 class SearchBoxModel;
 class SearchBoxModelObserverBridge;
 }
 
 @class AppListMenuController;
 @class HoverImageMenuButton;
 @class SearchTextField;
 
 @protocol AppsSearchBoxDelegate<NSTextFieldDelegate>
 
 - (app_list::AppListViewDelegate*)appListDelegate;
 - (app_list::SearchBoxModel*)searchBoxModel;
+- (app_list::AppListModel*)appListModel;
 - (void)modelTextDidChange;
-- (NSString*)currentUserName;
-- (NSString*)currentUserEmail;
 
 @end
 
 // Controller for the search box in the topmost portion of the app list.
 APP_LIST_EXPORT
 @interface AppsSearchBoxController : NSViewController<NSTextFieldDelegate> {
  @private
   base::scoped_nsobject<SearchTextField> searchTextField_;
   base::scoped_nsobject<NSImageView> searchImageView_;
   base::scoped_nsobject<HoverImageMenuButton> menuButton_;
@@ skipping 16 matching lines @@
 
 @interface AppsSearchBoxController (TestingAPI)
 
 - (NSTextField*)searchTextField;
 - (NSPopUpButton*)menuControl;
 - (app_list::AppListMenu*)appListMenu;
 
 @end
 
 #endif  // UI_APP_LIST_COCOA_APPS_SEARCH_BOX_CONTROLLER_H_