Move Singleton and related structs to namespace base

base/threading/thread_id_name_manager.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 BASE_THREADING_THREAD_ID_NAME_MANAGER_H_
 #define BASE_THREADING_THREAD_ID_NAME_MANAGER_H_
 
 #include <map>
 #include <string>
 
 #include "base/base_export.h"
 #include "base/basictypes.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/platform_thread.h"
 
-template <typename T> struct DefaultSingletonTraits;
+namespace base {
 
-namespace base {
+template <typename T>
+struct DefaultSingletonTraits;

[rvargas (doing something else), 2015/08/21 19:43:05]

keep in a single line.

 
 class BASE_EXPORT ThreadIdNameManager {
  public:
   static ThreadIdNameManager* GetInstance();
 
   static const char* GetDefaultInternedString();
 
   // Register the mapping between a thread |id| and |handle|.
   void RegisterThread(PlatformThreadHandle::Handle handle, PlatformThreadId id);
 
@@ skipping 29 matching lines @@
   // Treat the main process specially as there is no PlatformThreadHandle.
   std::string* main_process_name_;
   PlatformThreadId main_process_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ThreadIdNameManager);
 };
 
 }  // namespace base
 
 #endif  // BASE_THREADING_THREAD_ID_NAME_MANAGER_H_