Fix build breakage.

ui/base/models/simple_menu_model.cc

 // Copyright (c) 2011 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.
 
 #include "ui/base/models/simple_menu_model.h"
 
 #include "base/message_loop.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/l10n/l10n_util.h"
 
@@ skipping 14 matching lines @@
 #pragma optimize("", off)
 MSVC_PUSH_DISABLE_WARNING(4748)
 #endif
 
   ~Item() {
     CHECK_EQ(magic_id, kMagicIdAlive);
     magic_id = kMagicIdDead;
   }
 
 #if defined(COMPILER_MSVC)
-#pragma optimize("", off)
-MSVC_PUSH_DISABLE_WARNING(4748)
+MSVC_POP_WARNING()
+#pragma optimize("", on)
 #endif
 
   int command_id;
   string16 label;
   SkBitmap icon;
   ItemType type;
   int group_id;
   MenuModel* submenu;
   ButtonMenuItemModel* button_model;
   uint32 magic_id;
@@ skipping 334 matching lines @@
 #ifndef NDEBUG
   if (item.type == TYPE_SEPARATOR) {
     DCHECK_EQ(item.command_id, kSeparatorId);
   } else {
     DCHECK_GE(item.command_id, 0);
   }
 #endif  // NDEBUG
 }
 
 }  // namespace ui