Create an API around UtilityProcessHost and use that from chrome.

chrome/browser/first_run/first_run_win.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/first_run/first_run.h"
 
 #include <shlobj.h>
 #include <windows.h>
 
 #include <set>
 #include <sstream>
 
 #include "base/environment.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
+#include "base/process_util.h"
 #include "base/string_number_conversions.h"
 #include "base/string_split.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "base/win/object_watcher.h"
 #include "base/win/windows_version.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_updater.h"
 #include "chrome/browser/first_run/first_run_import_observer.h"
@@ skipping 457 matching lines @@
 
 FilePath MasterPrefsPath() {
   // The standard location of the master prefs is next to the chrome binary.
   FilePath master_prefs;
   if (!PathService::Get(base::DIR_EXE, &master_prefs))
     return FilePath();
   return master_prefs.AppendASCII(installer::kDefaultMasterPrefs);
 }
 
 }  // namespace first_run