Move Singleton and related structs to namespace base

content/browser/child_process_security_policy_impl.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/child_process_security_policy_impl.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
@@ skipping 287 matching lines @@
                                        security_state_.end());
   security_state_.clear();
 }
 
 // static
 ChildProcessSecurityPolicy* ChildProcessSecurityPolicy::GetInstance() {
   return ChildProcessSecurityPolicyImpl::GetInstance();
 }
 
 ChildProcessSecurityPolicyImpl* ChildProcessSecurityPolicyImpl::GetInstance() {
-  return Singleton<ChildProcessSecurityPolicyImpl>::get();
+  return base::Singleton<ChildProcessSecurityPolicyImpl>::get();
 }
 
 void ChildProcessSecurityPolicyImpl::Add(int child_id) {
   base::AutoLock lock(lock_);
   AddChild(child_id);
 }
 
 void ChildProcessSecurityPolicyImpl::AddWorker(int child_id,
                                                int main_render_process_id) {
   base::AutoLock lock(lock_);
@@ skipping 519 matching lines @@
   base::AutoLock lock(lock_);
 
   SecurityStateMap::iterator state = security_state_.find(child_id);
   if (state == security_state_.end())
     return false;
 
   return state->second->can_send_midi_sysex();
 }
 
 }  // namespace content