Move Singleton and related structs to namespace base

chrome/browser/extensions/api/braille_display_private/braille_controller_brlapi.cc

 // Copyright 2013 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 "chrome/browser/extensions/api/braille_display_private/braille_controller_brlapi.h"
 
 #include <algorithm>
 #include <cerrno>
 #include <cstring>
 #include <vector>
@@ skipping 28 matching lines @@
 BrailleController::~BrailleController() {
 }
 
 // static
 BrailleController* BrailleController::GetInstance() {
   return BrailleControllerImpl::GetInstance();
 }
 
 // static
 BrailleControllerImpl* BrailleControllerImpl::GetInstance() {
-  return Singleton<BrailleControllerImpl,
-                   LeakySingletonTraits<BrailleControllerImpl> >::get();
+  return base::Singleton<
+      BrailleControllerImpl,
+      base::LeakySingletonTraits<BrailleControllerImpl>>::get();
 }
 
 BrailleControllerImpl::BrailleControllerImpl()
     : started_connecting_(false),
       connect_scheduled_(false) {
   create_brlapi_connection_function_ = base::Bind(
       &BrailleControllerImpl::CreateBrlapiConnection,
       base::Unretained(this));
 }
 
@@ skipping 252 matching lines @@
     }
     return;
   }
   FOR_EACH_OBSERVER(BrailleObserver, observers_,
                     OnBrailleDisplayStateChanged(*new_state));
 }
 
 }  // namespace braille_display_private
 }  // namespace api
 }  // namespace extensions