Move Singleton and related structs to namespace base

content/browser/tcmalloc_internals_request_job.h

 // 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.
 
 #ifndef CONTENT_BROWSER_TCMALLOC_INTERNALS_REQUEST_JOB_H_
 #define CONTENT_BROWSER_TCMALLOC_INTERNALS_REQUEST_JOB_H_
 
 #include <map>
 #include "base/basictypes.h"
 #include "base/memory/singleton.h"
@@ skipping 22 matching lines @@
 
  private:
   AboutTcmallocOutputs();
   ~AboutTcmallocOutputs();
 
   // A map of header strings (e.g. "Browser", "Renderer PID 123")
   // to the tcmalloc output collected for each process.
   typedef std::map<std::string, std::string> AboutTcmallocOutputsType;
   AboutTcmallocOutputsType outputs_;
 
-  friend struct DefaultSingletonTraits<AboutTcmallocOutputs>;
+  friend struct base::DefaultSingletonTraits<AboutTcmallocOutputs>;
 
   DISALLOW_COPY_AND_ASSIGN(AboutTcmallocOutputs);
 };
 
 class TcmallocInternalsRequestJob : public net::URLRequestSimpleJob {
  public:
   TcmallocInternalsRequestJob(net::URLRequest* request,
                               net::NetworkDelegate* network_delegate);
 
   int GetData(std::string* mime_type,
               std::string* charset,
               std::string* data,
               const net::CompletionCallback& callback) const override;
 
  protected:
   ~TcmallocInternalsRequestJob() override {}
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(TcmallocInternalsRequestJob);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_TCMALLOC_INTERNALS_REQUEST_JOB_H_