Use a direct include of utf_string_conversions.h in content/.

content/browser/web_contents/touch_editable_impl_aura_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 "content/browser/web_contents/touch_editable_impl_aura.h"
 
 #include "base/command_line.h"
 #include "base/run_loop.h"
+#include "base/strings/utf_string_conversions.h"
 #include "base/test/test_timeouts.h"
-#include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/browser/web_contents/web_contents_view_aura.h"
 #include "content/public/browser/web_contents_view.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/test_utils.h"
 #include "content/shell/shell.h"
 #include "content/test/content_browser_test.h"
@@ skipping 255 matching lines @@
   TestTouchSelectionOnLongPress();
 }
 
 // TODO(miu): Disabled test due to flakiness.  http://crbug.com/235991
 IN_PROC_BROWSER_TEST_F(TouchEditableImplAuraTest,
                        DISABLED_TouchCursorInTextfieldTest) {
   TestTouchCursorInTextfield();
 }
 
 }  // namespace content