Remove unused copies of EarlyZygoteLaunch()

components/nacl/browser/nacl_process_host.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 "components/nacl/browser/nacl_process_host.h"
 
 #include <string.h>
 #include <algorithm>
 #include <string>
 #include <utility>
@@ skipping 141 matching lines @@
   return (base::win::OSInfo::GetInstance()->wow64_status() ==
           base::win::OSInfo::WOW64_ENABLED);
 }
 
 }  // namespace
 
 #endif  // defined(OS_WIN)
 
 namespace {
 
-#if defined(OS_POSIX) && !defined(OS_MACOSX)
-content::ZygoteHandle g_nacl_zygote;
-#endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
-
 // NOTE: changes to this class need to be reviewed by the security team.
 class NaClSandboxedProcessLauncherDelegate
     : public content::SandboxedProcessLauncherDelegate {
  public:
   NaClSandboxedProcessLauncherDelegate() {}
 
   ~NaClSandboxedProcessLauncherDelegate() override {}
 
 #if defined(OS_WIN)
   void PostSpawnTarget(base::ProcessHandle process) override {
@@ skipping 150 matching lines @@
       cmd->GetSwitchValueASCII(switches::kNaClDebugMask);
   // By default, exclude debugging SSH and the PNaCl translator.
   // about::flags only allows empty flags as the default, so replace
   // the empty setting with the default. To debug all apps, use a wild-card.
   if (nacl_debug_mask.empty()) {
     nacl_debug_mask = "!*://*/*ssh_client.nmf,chrome://pnacl-translator/*";
   }
   NaClBrowser::GetDelegate()->SetDebugPatterns(nacl_debug_mask);
 }
 
-#if defined(OS_POSIX) && !defined(OS_MACOSX)
-// static
-void NaClProcessHost::EarlyZygoteLaunch() {
-  DCHECK(!g_nacl_zygote);
-  g_nacl_zygote = content::CreateZygote();
-}
-#endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
-
 void NaClProcessHost::Launch(
     NaClHostMessageFilter* nacl_host_message_filter,
     IPC::Message* reply_msg,
     const base::FilePath& manifest_path) {
   nacl_host_message_filter_ = nacl_host_message_filter;
   reply_msg_ = reply_msg;
   manifest_path_ = manifest_path;
 
   // Do not launch the requested NaCl module if NaCl is marked "unstable" due
   // to too many crashes within a given time period.
@@ skipping 787 matching lines @@
     NaClStartDebugExceptionHandlerThread(
         std::move(process), info, base::ThreadTaskRunnerHandle::Get(),
         base::Bind(&NaClProcessHost::OnDebugExceptionHandlerLaunchedByBroker,
                    weak_factory_.GetWeakPtr()));
     return true;
   }
 }
 #endif
 
 }  // namespace nacl