[mojo] Delete third_party/mojo

third_party/mojo/src/mojo/edk/system/mutex.h

-// Copyright 2015 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.
-
-// A mutex class, with support for thread annotations.
-//
-// TODO(vtl): Currently, this is a fork of Chromium's
-// base/synchronization/lock.h (with names changed and minor modifications; it
-// still cheats and uses Chromium's lock_impl.*), but eventually we'll want our
-// own and, e.g., add support for non-exclusive (reader) locks.
-
-#ifndef THIRD_PARTY_MOJO_SRC_MOJO_EDK_SYSTEM_MUTEX_H_
-#define THIRD_PARTY_MOJO_SRC_MOJO_EDK_SYSTEM_MUTEX_H_
-
-#include "base/synchronization/lock_impl.h"
-#include "base/threading/platform_thread.h"
-#include "mojo/public/cpp/system/macros.h"
-#include "third_party/mojo/src/mojo/edk/system/system_impl_export.h"
-#include "third_party/mojo/src/mojo/edk/system/thread_annotations.h"
-
-namespace mojo {
-namespace system {
-
-// Mutex -----------------------------------------------------------------------
-
-class MOJO_LOCKABLE MOJO_SYSTEM_IMPL_EXPORT Mutex {
- public:
-#if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON)
-  Mutex() : lock_() {}
-  ~Mutex() {}
-
-  void Lock() MOJO_EXCLUSIVE_LOCK_FUNCTION() { lock_.Lock(); }
-  void Unlock() MOJO_UNLOCK_FUNCTION() { lock_.Unlock(); }
-
-  bool TryLock() MOJO_EXCLUSIVE_TRYLOCK_FUNCTION(true) { return lock_.Try(); }
-
-  void AssertHeld() const MOJO_ASSERT_EXCLUSIVE_LOCK() {}
-#else
-  Mutex();
-  ~Mutex();
-
-  void Lock() MOJO_EXCLUSIVE_LOCK_FUNCTION() {
-    lock_.Lock();
-    CheckUnheldAndMark();
-  }
-  void Unlock() MOJO_UNLOCK_FUNCTION() {
-    CheckHeldAndUnmark();
-    lock_.Unlock();
-  }
-
-  bool TryLock() MOJO_EXCLUSIVE_TRYLOCK_FUNCTION(true) {
-    bool rv = lock_.Try();
-    if (rv)
-      CheckUnheldAndMark();
-    return rv;
-  }
-
-  void AssertHeld() const MOJO_ASSERT_EXCLUSIVE_LOCK();
-#endif  // NDEBUG && !DCHECK_ALWAYS_ON
-
- private:
-#if !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)
-  void CheckHeldAndUnmark();
-  void CheckUnheldAndMark();
-
-  base::PlatformThreadRef owning_thread_ref_;
-#endif  // !NDEBUG || DCHECK_ALWAYS_ON
-
-  base::internal::LockImpl lock_;
-
-  MOJO_DISALLOW_COPY_AND_ASSIGN(Mutex);
-};
-
-// MutexLocker -----------------------------------------------------------------
-
-class MOJO_SCOPED_LOCKABLE MOJO_SYSTEM_IMPL_EXPORT MutexLocker {
- public:
-  explicit MutexLocker(Mutex* mutex) MOJO_EXCLUSIVE_LOCK_FUNCTION(mutex)
-      : mutex_(mutex) {
-    this->mutex_->Lock();
-  }
-  ~MutexLocker() MOJO_UNLOCK_FUNCTION() { this->mutex_->Unlock(); }
-
- private:
-  Mutex* const mutex_;
-
-  MOJO_DISALLOW_COPY_AND_ASSIGN(MutexLocker);
-};
-
-}  // namespace system
-}  // namespace mojo
-
-#endif  // THIRD_PARTY_MOJO_SRC_MOJO_EDK_SYSTEM_MUTEX_H_