Move base to DEPS

base/barrier_closure.cc

-// Copyright 2013 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/barrier_closure.h"
-
-#include "base/atomic_ref_count.h"
-#include "base/bind.h"
-
-namespace {
-
-// Maintains state for a BarrierClosure.
-class BarrierInfo {
- public:
-  BarrierInfo(int num_callbacks_left, const base::Closure& done_closure);
-  void Run();
-
- private:
-  base::AtomicRefCount num_callbacks_left_;
-  base::Closure done_closure_;
-};
-
-BarrierInfo::BarrierInfo(int num_callbacks, const base::Closure& done_closure)
-    : num_callbacks_left_(num_callbacks),
-      done_closure_(done_closure) {
-}
-
-void BarrierInfo::Run() {
-  DCHECK(!base::AtomicRefCountIsZero(&num_callbacks_left_));
-  if (!base::AtomicRefCountDec(&num_callbacks_left_)) {
-    base::Closure done_closure = done_closure_;
-    done_closure_.Reset();
-    done_closure.Run();
-  }
-}
-
-}  // namespace
-
-namespace base {
-
-base::Closure BarrierClosure(int num_callbacks_left,
-                             const base::Closure& done_closure) {
-  DCHECK_GE(num_callbacks_left, 0);
-
-  if (num_callbacks_left == 0)
-    done_closure.Run();
-
-  return base::Bind(&BarrierInfo::Run,
-                    base::Owned(
-                        new BarrierInfo(num_callbacks_left, done_closure)));
-}
-
-}  // namespace base