Make utility process run in-process when running in single-process mode.

chrome/browser/extensions/startup_helper.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/extensions/startup_helper.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 121 matching lines @@
       run_loop_->Quit();
   }
 
   void StartOnFileThread() {
     CHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
     scoped_refptr<base::MessageLoopProxy> file_thread_proxy =
         BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE);
 
     scoped_refptr<SandboxedUnpacker> unpacker(
         new SandboxedUnpacker(crx_file_,
-                              true /* out of process */,
                               Manifest::INTERNAL,
                               0, /* no special creation flags */
                               temp_dir_,
                               file_thread_proxy.get(),
                               this));
     unpacker->Start();
   }
 
   // The file being validated.
   const base::FilePath& crx_file_;
@@ skipping 182 matching lines @@
   }
   return id;
 }
 
 StartupHelper::~StartupHelper() {
   if (pack_job_.get())
     pack_job_->ClearClient();
 }
 
 }  // namespace extensions