Remove ref_counted.cc

base/memory/ref_counted.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/memory/ref_counted.h"
-#include "base/threading/thread_collision_warner.h"
-
-namespace base {
-
-namespace subtle {
-
-bool RefCountedThreadSafeBase::HasOneRef() const {
-  return AtomicRefCountIsOne(
-      &const_cast<RefCountedThreadSafeBase*>(this)->ref_count_);
-}
-
-RefCountedThreadSafeBase::RefCountedThreadSafeBase() : ref_count_(0) {
-#ifndef NDEBUG
-  in_dtor_ = false;
-#endif
-}
-
-RefCountedThreadSafeBase::~RefCountedThreadSafeBase() {
-#ifndef NDEBUG
-  DCHECK(in_dtor_) << "RefCountedThreadSafe object deleted without "
-                      "calling Release()";
-#endif
-}
-
-void RefCountedThreadSafeBase::AddRef() const {
-#ifndef NDEBUG
-  DCHECK(!in_dtor_);
-#endif
-  AtomicRefCountInc(&ref_count_);
-}
-
-bool RefCountedThreadSafeBase::Release() const {
-#ifndef NDEBUG
-  DCHECK(!in_dtor_);
-  DCHECK(!AtomicRefCountIsZero(&ref_count_));
-#endif
-  if (!AtomicRefCountDec(&ref_count_)) {
-#ifndef NDEBUG
-    in_dtor_ = true;
-#endif
-    return true;
-  }
-  return false;
-}
-
-}  // namespace subtle
-
-}  // namespace base