Use a direct include of strings headers in chrome/auto*/.

chrome/browser/automation/testing_automation_provider_win.cc

 // 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.
 
 #include "chrome/browser/automation/testing_automation_provider.h"
 
 #include <windows.h>
 
-#include "base/string_util.h"
+#include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/automation/automation_browser_tracker.h"
 #include "chrome/browser/automation/automation_window_tracker.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 
 void TestingAutomationProvider::TerminateSession(int handle, bool* success) {
   *success = false;
 
   if (browser_tracker_->ContainsHandle(handle)) {
     Browser* browser = browser_tracker_->GetResource(handle);
     HWND window = browser->window()->GetNativeWindow();
     *success = (::PostMessageW(window, WM_ENDSESSION, 0, 0) == TRUE);
   }
 }
 
 void TestingAutomationProvider::SetWindowBounds(int handle,
                                                 const gfx::Rect& bounds,
                                                 bool* success) {
   *success = false;
   if (window_tracker_->ContainsHandle(handle)) {
     HWND hwnd = window_tracker_->GetResource(handle);
     if (::MoveWindow(hwnd, bounds.x(), bounds.y(), bounds.width(),
                      bounds.height(), true)) {
       *success = true;
     }
   }
 }