Move base::ThreadLocalPlatform to base::internal::ThreadLocalPlatform.

base/thread_local_win.cc

 // Copyright (c) 2006-2008 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 "base/thread_local.h"
 
 #include <windows.h>
 
 #include "base/logging.h"
 
 namespace base {
 
+namespace internal {
+
 // static
 void ThreadLocalPlatform::AllocateSlot(SlotType& slot) {
   slot = TlsAlloc();
   CHECK_NE(slot, TLS_OUT_OF_INDEXES);
 }
 
 // static
 void ThreadLocalPlatform::FreeSlot(SlotType& slot) {
   if (!TlsFree(slot)) {
     NOTREACHED() << "Failed to deallocate tls slot with TlsFree().";
   }
 }
 
 // static
 void* ThreadLocalPlatform::GetValueFromSlot(SlotType& slot) {
   return TlsGetValue(slot);
 }
 
 // static
 void ThreadLocalPlatform::SetValueInSlot(SlotType& slot, void* value) {
   if (!TlsSetValue(slot, value)) {
     LOG(FATAL) << "Failed to TlsSetValue().";
   }
 }
 
+}  // namespace internal
+
 }  // namespace base