Prefix string16 with base:: in ui/.

ui/views/controls/menu/native_menu_win.h

 // 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.
 
 #ifndef UI_VIEWS_CONTROLS_MENU_NATIVE_MENU_WIN_H_
 #define UI_VIEWS_CONTROLS_MENU_NATIVE_MENU_WIN_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 56 matching lines @@
 
   // Sets the state of the item at the specified index.
   void SetMenuItemState(int menu_index,
                         bool enabled,
                         bool checked,
                         bool is_default);
 
   // Sets the label of the item at the specified index.
   void SetMenuItemLabel(int menu_index,
                         int model_index,
-                        const string16& label);
+                        const base::string16& label);
 
   // Updates the local data structure with the correctly formatted version of
   // |label| at the specified model_index, and adds string data to |mii| if
   // the menu is not owner-draw. That's a mouthful. This function exists because
   // of the peculiarities of the Windows menu API.
   void UpdateMenuItemInfoForString(MENUITEMINFO* mii,
                                    int model_index,
-                                   const string16& label);
+                                   const base::string16& label);
 
   // Returns the alignment flags to be passed to TrackPopupMenuEx, based on the
   // supplied alignment and the UI text direction.
   UINT GetAlignmentFlags(int alignment) const;
 
   // Resets the native menu stored in |menu_| by destroying any old menu then
   // creating a new empty one.
   void ResetNativeMenu();
 
   // Creates the host window that receives notifications from the menu.
@@ skipping 64 matching lines @@
   // has a menu open, because our hook function that receives keyboard
   // events doesn't have a mechanism to get a user data pointer.
   static NativeMenuWin* open_native_menu_win_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeMenuWin);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_MENU_NATIVE_MENU_WIN_H_