EDK: Move mutex.*, cond_var.*, and thread_annotations.h to //mojo/edk/util.

mojo/edk/util/mutex.cc

 // 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.
 
-#include "mojo/edk/system/mutex.h"
+#include "mojo/edk/util/mutex.h"
 
 #if !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)
 #include <errno.h>
-#include <string.h>
 
-#include "base/logging.h"
+#include "mojo/edk/util/logging_internal.h"
 
 namespace mojo {
-namespace system {
+namespace util {
 
 Mutex::Mutex() {
   pthread_mutexattr_t attr;
   int error = pthread_mutexattr_init(&attr);
-  DCHECK(!error) << "pthread_mutexattr_init: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_mutexattr_init", error);
   error = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
-  DCHECK(!error) << "pthread_mutexattr_settype: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_mutexattr_settype", error);
   error = pthread_mutex_init(&impl_, &attr);
-  DCHECK(!error) << "pthread_mutex_init: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_mutex_init", error);
   error = pthread_mutexattr_destroy(&attr);
-  DCHECK(!error) << "pthread_mutexattr_destroy: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_mutexattr_destroy", error);
 }
 
 Mutex::~Mutex() {
   int error = pthread_mutex_destroy(&impl_);
-  DCHECK(!error) << "pthread_mutex_destroy: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_mutex_destroy", error);
 }
 
 void Mutex::Lock() MOJO_EXCLUSIVE_LOCK_FUNCTION() {
   int error = pthread_mutex_lock(&impl_);
-  DCHECK(!error) << "pthread_mutex_lock: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_mutex_lock", error);
 }
 
 void Mutex::Unlock() MOJO_UNLOCK_FUNCTION() {
   int error = pthread_mutex_unlock(&impl_);
-  DCHECK(!error) << "pthread_mutex_unlock: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_mutex_unlock", error);
 }
 
 bool Mutex::TryLock() MOJO_EXCLUSIVE_TRYLOCK_FUNCTION(true) {
   int error = pthread_mutex_trylock(&impl_);
-  DCHECK(!error || error == EBUSY) << "pthread_mutex_trylock: "
-                                   << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error || error == EBUSY, "pthread_mutex_trylock",
+                             error);
   return !error;
 }
 
 void Mutex::AssertHeld() MOJO_ASSERT_EXCLUSIVE_LOCK() {
   int error = pthread_mutex_lock(&impl_);
-  DCHECK_EQ(error, EDEADLK) << ". pthread_mutex_lock: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(error == EDEADLK, "pthread_mutex_lock", error);
 }
 
-}  // namespace system
+}  // namespace util
 }  // namespace mojo
 
 #endif  // !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)