Move base to DEPS

base/synchronization/lock_impl_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/synchronization/lock_impl.h"
-
-#include <errno.h>
-#include <string.h>
-
-#include "base/logging.h"
-
-namespace base {
-namespace internal {
-
-LockImpl::LockImpl() {
-#ifndef NDEBUG
-  // In debug, setup attributes for lock error checking.
-  pthread_mutexattr_t mta;
-  int rv = pthread_mutexattr_init(&mta);
-  DCHECK_EQ(rv, 0) << ". " << strerror(rv);
-  rv = pthread_mutexattr_settype(&mta, PTHREAD_MUTEX_ERRORCHECK);
-  DCHECK_EQ(rv, 0) << ". " << strerror(rv);
-  rv = pthread_mutex_init(&native_handle_, &mta);
-  DCHECK_EQ(rv, 0) << ". " << strerror(rv);
-  rv = pthread_mutexattr_destroy(&mta);
-  DCHECK_EQ(rv, 0) << ". " << strerror(rv);
-#else
-  // In release, go with the default lock attributes.
-  pthread_mutex_init(&native_handle_, NULL);
-#endif
-}
-
-LockImpl::~LockImpl() {
-  int rv = pthread_mutex_destroy(&native_handle_);
-  DCHECK_EQ(rv, 0) << ". " << strerror(rv);
-}
-
-bool LockImpl::Try() {
-  int rv = pthread_mutex_trylock(&native_handle_);
-  DCHECK(rv == 0 || rv == EBUSY) << ". " << strerror(rv);
-  return rv == 0;
-}
-
-void LockImpl::Lock() {
-  int rv = pthread_mutex_lock(&native_handle_);
-  DCHECK_EQ(rv, 0) << ". " << strerror(rv);
-}
-
-void LockImpl::Unlock() {
-  int rv = pthread_mutex_unlock(&native_handle_);
-  DCHECK_EQ(rv, 0) << ". " << strerror(rv);
-}
-
-}  // namespace internal
-}  // namespace base