Move Singleton and related structs to namespace base

content/browser/tcmalloc_internals_request_job.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/tcmalloc_internals_request_job.h"
 
 #include "base/allocator/allocator_extension.h"
 #include "content/common/child_process_messages.h"
 #include "content/public/browser/browser_child_process_host_iterator.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/common/process_type.h"
 #include "net/base/net_errors.h"
 
 namespace content {
 
 // static
 AboutTcmallocOutputs* AboutTcmallocOutputs::GetInstance() {
-  return Singleton<AboutTcmallocOutputs>::get();
+  return base::Singleton<AboutTcmallocOutputs>::get();
 }
 
 AboutTcmallocOutputs::AboutTcmallocOutputs() {}
 
 AboutTcmallocOutputs::~AboutTcmallocOutputs() {}
 
 void AboutTcmallocOutputs::OnStatsForChildProcess(
     base::ProcessId pid, int process_type,
     const std::string& output) {
   std::string header = GetProcessTypeNameInEnglish(process_type);
@@ skipping 82 matching lines @@
   charset->assign("UTF8");
 
   data->clear();
 #if defined(USE_TCMALLOC)
   AboutTcmalloc(data);
 #endif
   return net::OK;
 }
 
 } // namespace content