Clean up Linux zygote creation 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 211 matching lines @@
   RenderSandboxHostLinux::GetInstance()->Init();
 
   if (parsed_command_line.HasSwitch(switches::kNoZygote)) {
     CHECK(parsed_command_line.HasSwitch(switches::kNoSandbox))
         << "--no-sandbox should be used together with --no--zygote";
     return;
   }
 
   // Tickle the zygote host so it forks now.
   ZygoteHostImpl::GetInstance()->Init(parsed_command_line);
-  *GetGenericZygote() = CreateZygote();
+  ZygoteHandle generic_zygote = CreateGenericZygote();
   // TODO(kerrnel): Investigate doing this without the ZygoteHostImpl as a
   // proxy. It is currently done this way due to concerns about race
   // conditions.
   ZygoteHostImpl::GetInstance()->SetRendererSandboxStatus(
-      (*GetGenericZygote())->GetSandboxStatus());
+      generic_zygote->GetSandboxStatus());
 }
 #endif
 
 #if defined(USE_GLIB)
 static void GLibLogHandler(const gchar* log_domain,
                            GLogLevelFlags log_level,
                            const gchar* message,
                            gpointer userdata) {
   if (!log_domain)
     log_domain = "<unknown>";
@@ skipping 1513 matching lines @@
         BrowserThread::GetTaskRunnerForThread(BrowserThread::FILE),
         MediaInternals::GetInstance());
   }
   CHECK(audio_manager_);
 
   audio_system_ = media::AudioSystemImpl::Create(audio_manager_.get());
   CHECK(audio_system_);
 }
 
 }  // namespace content