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

content/shell/shell_gtk.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/shell/shell.h"
 
 #include <gdk/gdkkeysyms.h>
 #include <gtk/gtk.h>
 
 #include "base/logging.h"
 #include "base/strings/string_piece.h"
-#include "base/utf_string_conversions.h"
+#include "base/strings/utf_string_conversions.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/native_web_keyboard_event.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_view.h"
 #include "content/public/common/renderer_preferences.h"
 #include "content/shell/shell_browser_context.h"
 #include "content/shell/shell_content_browser_client.h"
 
 namespace content {
 
@@ skipping 307 matching lines @@
 
 void Shell::PlatformSetTitle(const string16& title) {
   if (headless_)
     return;
 
   std::string title_utf8 = UTF16ToUTF8(title);
   gtk_window_set_title(GTK_WINDOW(window_), title_utf8.c_str());
 }
 
 }  // namespace content