Move Singleton and related structs to namespace base

content/browser/plugin_service_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/plugin_service_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
@@ skipping 134 matching lines @@
   for (RenderProcessHost::iterator it = RenderProcessHost::AllHostsIterator();
        !it.IsAtEnd(); it.Advance()) {
     RenderProcessHost* host = it.GetCurrentValue();
     if (!browser_context || host->GetBrowserContext() == browser_context)
       host->Send(new ViewMsg_PurgePluginListCache(reload_pages));
   }
 }
 
 // static
 PluginServiceImpl* PluginServiceImpl::GetInstance() {
-  return Singleton<PluginServiceImpl>::get();
+  return base::Singleton<PluginServiceImpl>::get();
 }
 
 PluginServiceImpl::PluginServiceImpl()
     : npapi_plugins_enabled_(false), filter_(NULL) {
   // Collect the total number of browser processes (which create
   // PluginServiceImpl objects, to be precise). The number is used to normalize
   // the number of processes which start at least one NPAPI/PPAPI Flash process.
   static bool counted = false;
   if (!counted) {
     counted = true;
@@ skipping 700 matching lines @@
 #endif
 
 bool PluginServiceImpl::PpapiDevChannelSupported(
     BrowserContext* browser_context,
     const GURL& document_url) {
   return GetContentClient()->browser()->IsPluginAllowedToUseDevChannelAPIs(
       browser_context, document_url);
 }
 
 }  // namespace content