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

chrome/browser/ui/webui/options/chromeos/user_image_source.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/webui/options/chromeos/user_image_source.h"
 
 #include "base/memory/ref_counted_memory.h"
 #include "base/message_loop.h"
-#include "base/string_split.h"
+#include "base/strings/string_split.h"
 #include "chrome/browser/chromeos/login/default_user_images.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/common/url_constants.h"
 #include "googleurl/src/url_parse.h"
 #include "grit/theme_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/codec/png_codec.h"
 #include "ui/webui/web_ui_util.h"
 
 namespace {
@@ skipping 90 matching lines @@
   if (is_image_animated) {
     const chromeos::User* user = chromeos::UserManager::Get()->FindUser(email);
     if (user && user->has_animated_image())
       return "image/gif";
   }
   return "image/png";
 }
 
 }  // namespace options
 }  // namespace chromeos