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

chrome/browser/ui/tabs/tab_strip_model_unittest.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/ui/tabs/tab_strip_model.h"
 
 #include <map>
 #include <string>
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/stl_util.h"
-#include "base/string_split.h"
 #include "base/string_util.h"
 #include "base/strings/string_number_conversions.h"
+#include "base/strings/string_split.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/defaults.h"
 #include "chrome/browser/extensions/tab_helper.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/tabs/tab_strip_model_delegate.h"
 #include "chrome/browser/ui/tabs/tab_strip_model_order_controller.h"
 #include "chrome/browser/ui/tabs/test_tab_strip_model_delegate.h"
 #include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
@@ skipping 2305 matching lines @@
   strip.ActivateTabAt(1, true);
   ASSERT_EQ(1, observer.GetStateCount());
   State s(contents2, 1, MockTabStripModelObserver::SELECT);
   s.src_contents = contents2;
   s.src_index = 1;
   s.user_gesture = false;
   EXPECT_TRUE(observer.StateEquals(0, s));
   strip.RemoveObserver(&observer);
   strip.CloseAllTabs();
 }