Removing dead code

content/browser/browser_main_loop.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/browser_main_loop.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
@@ skipping 940 matching lines @@
       task_scheduler_init_params = GetDefaultTaskSchedulerInitParams();
     DCHECK(task_scheduler_init_params);
     base::TaskScheduler::GetInstance()->Start(
         *task_scheduler_init_params.get());
   }
 
   GetContentClient()->browser()->PerformExperimentalTaskSchedulerRedirections();
 
   base::Thread::Options io_message_loop_options;
   io_message_loop_options.message_loop_type = base::MessageLoop::TYPE_IO;
-  base::Thread::Options ui_message_loop_options;
-  ui_message_loop_options.message_loop_type = base::MessageLoop::TYPE_UI;
 
   const bool redirect_nonUInonIO_browser_threads =
       GetContentClient()
           ->browser()
           ->RedirectNonUINonIOBrowserThreadsToTaskScheduler();
 
   // Start threads in the order they occur in the BrowserThread::ID enumeration,
   // except for BrowserThread::UI which is the main thread.
   //
   // Must be size_t so we can increment it.
@@ skipping 797 matching lines @@
         base::MakeUnique<media::AudioThreadImpl>(),
         MediaInternals::GetInstance());
   }
   CHECK(audio_manager_);
 
   audio_system_ = media::AudioSystemImpl::Create(audio_manager_.get());
   CHECK(audio_system_);
 }
 
 }  // namespace content