Deleted OS_WIN and all Windows specific files from base.

base/threading/thread_local_win.cc

-// Copyright (c) 2010 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 <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