Add a new GetInstance() method for singleton classes under chrome/service and /net.

chrome/service/service_main.cc

 // Copyright (c) 2010 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 "base/debug/debugger.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/singleton.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/main_function_params.h"
 #include "chrome/common/sandbox_policy.h"
 #include "chrome/common/service_process_util.h"
 #include "chrome/service/cloud_print/cloud_print_proxy.h"
 #include "chrome/service/service_process.h"
 
 // Mainline routine for running as the service process.
 int ServiceProcessMain(const MainFunctionParams& parameters) {
   // If there is already a service process running, quit now.
-  if (!Singleton<ServiceProcessState>::get()->Initialize())
+  if (!ServiceProcessState::GetInstance()->Initialize())
     return 0;
 
   MessageLoopForUI main_message_loop;
   if (parameters.command_line_.HasSwitch(switches::kWaitForDebugger)) {
     base::debug::WaitForDebugger(60, true);
   }
 
   PlatformThread::SetName("CrServiceMain");
 
 #if defined(OS_WIN)
   sandbox::BrokerServices* broker_services =
       parameters.sandbox_info_.BrokerServices();
   if (broker_services)
     sandbox::InitBrokerServices(broker_services);
 #endif   // defined(OS_WIN)
 
   ServiceProcess service_process;
   if (!service_process.Initialize(&main_message_loop,
                                   parameters.command_line_)) {
     LOG(ERROR) << "Service process failed to initialize";
     return 0;
   }
 
   MessageLoop::current()->Run();
   service_process.Teardown();
   return 0;
 }