Use a direct include of utf_string_conversions.h in chrome/browser/, part 3.

chrome/browser/web_applications/web_app_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/web_applications/web_app.h"
 
 #include "base/files/file_path.h"
 #include "base/string_util.h"
-#include "base/utf_string_conversions.h"
+#include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/extensions/tab_helper.h"
 #include "chrome/browser/favicon/favicon_tab_helper.h"
 #include "chrome/browser/ui/web_applications/web_app_ui.h"
 #include "chrome/common/extensions/extension_messages.h"
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
 #include "content/public/test/test_renderer_host.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using content::RenderViewHostTester;
 
@@ skipping 41 matching lines @@
 }
 
 TEST_F(WebApplicationTest, AppDirWithUrl) {
   base::FilePath profile_path(FILE_PATH_LITERAL("profile"));
   base::FilePath result(web_app::GetWebAppDataDirectory(
       profile_path, std::string(), GURL("http://example.com")));
   base::FilePath expected = profile_path.AppendASCII("Web Applications")
       .AppendASCII("example.com").AppendASCII("http_80");
   EXPECT_EQ(expected, result);
 }