Switch thread_local to use ThreadPlatformStorage in Android

base/threading/thread_local_posix.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"
 
+#if !defined(OS_ANDROID)
+
 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
+
+#endif  // !defined(OS_ANDROID)