Move Singleton and related structs to namespace base

components/web_cache/browser/web_cache_manager.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/web_cache/browser/web_cache_manager.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 38 matching lines @@
   UMA_HISTOGRAM_MEMORY_MB("Cache.MaxCacheSizeMB",
                           default_cache_size / 1024 / 1024);
 
   return default_cache_size;
 }
 
 }  // anonymous namespace
 
 // static
 WebCacheManager* WebCacheManager::GetInstance() {
-  return Singleton<WebCacheManager>::get();
+  return base::Singleton<WebCacheManager>::get();
 }
 
 WebCacheManager::WebCacheManager()
     : global_size_limit_(GetDefaultGlobalSizeLimit()),
       weak_factory_(this) {
   registrar_.Add(this, content::NOTIFICATION_RENDERER_PROCESS_CREATED,
                  content::NotificationService::AllBrowserContextsAndSources());
   registrar_.Add(this, content::NOTIFICATION_RENDERER_PROCESS_TERMINATED,
                  content::NotificationService::AllBrowserContextsAndSources());
 }
@@ skipping 364 matching lines @@
       inactive_renderers_.insert(*iter);
       active_renderers_.erase(*iter);
       iter = active_renderers_.begin();
       continue;
     }
     ++iter;
   }
 }
 
 }  // namespace web_cache