Switch thread_local to use ThreadPlatformStorage in Android

base/threading/thread_local_android.cc

 // 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);
+  bool succeed = slot->Initialize(NULL);
+  CHECK(succeed);
 }
 
 // static
 void ThreadLocalPlatform::FreeSlot(SlotType slot) {
-  int error = pthread_key_delete(slot);
-  DCHECK_EQ(0, error);
+  slot.Free();
 }
 
 // static
 void* ThreadLocalPlatform::GetValueFromSlot(SlotType slot) {
-  return pthread_getspecific(slot);
+  return slot.Get();
 }
 
 // static
 void ThreadLocalPlatform::SetValueInSlot(SlotType slot, void* value) {
-  int error = pthread_setspecific(slot, value);
-  DCHECK_EQ(error, 0);
+  slot.Set(value);
 }
 
 }  // namespace internal
 }  // namespace base