Remove --no-use-mus-in-renderer

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 1457 matching lines @@
   gpu::GpuChannelEstablishFactory* factory =
       GetContentClient()->browser()->GetGpuChannelEstablishFactory();
   if (!factory) {
     BrowserGpuChannelHostFactory::Initialize(established_gpu_channel);
     factory = BrowserGpuChannelHostFactory::instance();
   }
   DCHECK(factory);
   ImageTransportFactory::Initialize();
   ImageTransportFactory::GetInstance()->SetGpuChannelEstablishFactory(factory);
 #if defined(USE_AURA)
-  bool use_mus_in_renderer = !base::CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kNoUseMusInRenderer);
-  if (!use_mus_in_renderer || env_->mode() == aura::Env::Mode::LOCAL) {
+  if (env_->mode() == aura::Env::Mode::LOCAL) {
     env_->set_context_factory(GetContextFactory());
     env_->set_context_factory_private(GetContextFactoryPrivate());
   }
 #endif  // defined(USE_AURA)
 #endif  // defined(OS_ANDROID)
 
   // Enable the GpuMemoryBuffer dump provider with IO thread affinity. Note that
   // unregistration happens on the IO thread (See
   // BrowserProcessSubThread::IOThreadPreCleanUp).
   base::trace_event::MemoryDumpManager::GetInstance()->RegisterDumpProvider(
@@ skipping 301 matching lines @@
         BrowserThread::GetTaskRunnerForThread(BrowserThread::FILE),
         MediaInternals::GetInstance());
   }
   CHECK(audio_manager_);
 
   audio_system_ = media::AudioSystemImpl::Create(audio_manager_.get());
   CHECK(audio_system_);
 }
 
 }  // namespace content