chrome: Update include paths of string_split.h to its new location.

chrome/browser/page_cycler/page_cycler_browsertest.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 "base/command_line.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/path_service.h"
-#include "base/string_split.h"
 #include "base/string_util.h"
+#include "base/strings/string_split.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/page_cycler/page_cycler.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/in_process_browser_test.h"
@@ skipping 364 matching lines @@
   ASSERT_EQ(1u, errors.size());
 
   std::string expected_error;
   expected_error.append("Failed to load the page at: ")
       .append(kCacheMissURL)
       .append(": The requested entry was not found in the cache.");
 
   ASSERT_FALSE(errors[0].compare(expected_error));
 }
 #endif  // !defined(OS_CHROMEOS)