Use a direct include of utf_string_conversions.h in android_webview/, apps/, ash/, base/.

base/win/windows_version.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 "base/win/windows_version.h"
 
 #include <windows.h>
 
 #include "base/logging.h"
-#include "base/utf_string_conversions.h"
+#include "base/strings/utf_string_conversions.h"
 #include "base/win/registry.h"
 
 namespace base {
 namespace win {
 
 // static
 OSInfo* OSInfo::GetInstance() {
   // Note: we don't use the Singleton class because it depends on AtExitManager,
   // and it's convenient for other modules to use this classs without it. This
   // pattern is copied from gurl.cc.
@@ skipping 81 matching lines @@
     return WOW64_UNKNOWN;
   return is_wow64 ? WOW64_ENABLED : WOW64_DISABLED;
 }
 
 Version GetVersion() {
   return OSInfo::GetInstance()->version();
 }
 
 }  // namespace win
 }  // namespace base