Use a direct include of strings headers in chrome/browser/ui/cocoa/.

chrome/browser/ui/cocoa/history_menu_cocoa_controller_unittest.mm

 // 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 "base/memory/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/string_util.h"
+#include "base/strings/string_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/ui/cocoa/cocoa_profile_test.h"
 #include "chrome/browser/ui/cocoa/history_menu_bridge.h"
 #include "chrome/browser/ui/cocoa/history_menu_cocoa_controller.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 @interface FakeHistoryMenuController : HistoryMenuCocoaController {
  @public
   BOOL opened_[2];
@@ skipping 61 matching lines @@
   std::map<NSMenuItem*, HistoryMenuBridge::HistoryItem*>::iterator it =
       items.begin();
 
   for ( ; it != items.end(); ++it) {
     HistoryMenuBridge::HistoryItem* item = it->second;
     EXPECT_FALSE(controller()->opened_[item->session_id]);
     [controller() openHistoryMenuItem:it->first];
     EXPECT_TRUE(controller()->opened_[item->session_id]);
   }
 }