Switch thread_local to use chromium's TLS implementation

base/threading/thread_local_posix.cc

Index: base/threading/thread_local_posix.cc
diff --git a/base/threading/thread_local_posix.cc b/base/threading/thread_local_posix.cc
deleted file mode 100644
index 526a66d062900f30f1b1698fc7a2c603620052b7..0000000000000000000000000000000000000000
--- a/base/threading/thread_local_posix.cc
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2011 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/threading/thread_local.h"
-
-#include <pthread.h>
-
-#include "base/logging.h"
-
-namespace base {
-namespace internal {
-
-// static
-void ThreadLocalPlatform::AllocateSlot(SlotType* slot) {
-  int error = pthread_key_create(slot, NULL);
-  CHECK_EQ(error, 0);
-}
-
-// static
-void ThreadLocalPlatform::FreeSlot(SlotType slot) {
-  int error = pthread_key_delete(slot);
-  DCHECK_EQ(0, error);
-}
-
-// static
-void* ThreadLocalPlatform::GetValueFromSlot(SlotType slot) {
-  return pthread_getspecific(slot);
-}
-
-// static
-void ThreadLocalPlatform::SetValueInSlot(SlotType slot, void* value) {
-  int error = pthread_setspecific(slot, value);
-  DCHECK_EQ(error, 0);
-}
-
-}  // namespace internal
-}  // namespace base