Move thread local stuff from base to base/threading and consistently use the...

base/threading/thread_local_storage.h

Index: base/threading/thread_local_storage.h
===================================================================
--- base/threading/thread_local_storage.h	(revision 70315)
+++ base/threading/thread_local_storage.h	(working copy)
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef BASE_THREAD_LOCAL_STORAGE_H_
-#define BASE_THREAD_LOCAL_STORAGE_H_
+#ifndef BASE_THREADING_THREAD_LOCAL_STORAGE_H_
+#define BASE_THREADING_THREAD_LOCAL_STORAGE_H_
 #pragma once
 
 #include "base/basictypes.h"
@@ -12,6 +12,8 @@
 #include <pthread.h>
 #endif
 
+namespace base {
+
 // Wrapper for thread local storage.  This class doesn't do much except provide
 // an API for portability.
 class ThreadLocalStorage {
@@ -88,8 +90,6 @@
   DISALLOW_COPY_AND_ASSIGN(ThreadLocalStorage);
 };
 
-// Temporary backwards-compatible name.
-// TODO(evanm): replace all usage of TLSSlot.
-typedef ThreadLocalStorage::Slot TLSSlot;
+}  // namespace base
 
-#endif  // BASE_THREAD_LOCAL_STORAGE_H_
+#endif  // BASE_THREADING_THREAD_LOCAL_STORAGE_H_