Move Singleton and related structs to namespace base

chrome/browser/extensions/api/debugger/debugger_api.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.
 
 // Implements the Chrome Extensions Debugger API.
 
 #include "chrome/browser/extensions/api/debugger/debugger_api.h"
 
 #include <map>
 #include <set>
@@ skipping 251 matching lines @@
 };
 
 AttachedClientHosts::AttachedClientHosts() {
 }
 
 AttachedClientHosts::~AttachedClientHosts() {
 }
 
 // static
 AttachedClientHosts* AttachedClientHosts::GetInstance() {
-  return Singleton<AttachedClientHosts>::get();
+  return base::Singleton<AttachedClientHosts>::get();
 }
 
 void AttachedClientHosts::Add(ExtensionDevToolsClientHost* client_host) {
   client_hosts_.insert(client_host);
 }
 
 void AttachedClientHosts::Remove(ExtensionDevToolsClientHost* client_host) {
   client_hosts_.erase(client_host);
 }
 
@@ skipping 462 matching lines @@
     const std::vector<DevToolsTargetImpl*>& target_list) {
   scoped_ptr<base::ListValue> result(new base::ListValue());
   for (size_t i = 0; i < target_list.size(); ++i)
     result->Append(SerializeTarget(*target_list[i]));
   STLDeleteContainerPointers(target_list.begin(), target_list.end());
   SetResult(result.release());
   SendResponse(true);
 }
 
 }  // namespace extensions