Replace use of GetMacOSStatusErrorString (deprecated) with use of NSOSStatusErrorDomain.

webrtc/base/logging_mac.mm

Index: webrtc/base/logging_mac.mm
diff --git a/webrtc/base/scoped_autorelease_pool.mm b/webrtc/base/logging_mac.mm
similarity index 59%
copy from webrtc/base/scoped_autorelease_pool.mm
copy to webrtc/base/logging_mac.mm
index 4176aad0e9cda5016da93017185b163bcfe7ec0e..ffee3541a48245e0179670ce2b013f957bc6b88a 100644
--- a/webrtc/base/scoped_autorelease_pool.mm
+++ b/webrtc/base/logging_mac.mm
@@ -1,5 +1,5 @@
 /*
- *  Copyright 2008 The WebRTC Project Authors. All rights reserved.
+ *  Copyright 2016 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
@@ -8,18 +8,15 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
+#include "webrtc/base/logging.h"
+
 #import <Foundation/Foundation.h>
 
-#import "webrtc/base/scoped_autorelease_pool.h"
 
 namespace rtc {
-
-ScopedAutoreleasePool::ScopedAutoreleasePool() {
-  pool_ = [[NSAutoreleasePool alloc] init];
+std::string DescriptionFromOSStatus(OSStatus err) {
+  NSError* error =
+      [NSError errorWithDomain:NSOSStatusErrorDomain code:err userInfo:nil];
+  return error.description.UTF8String;
 }
-
-ScopedAutoreleasePool::~ScopedAutoreleasePool() {
-  [pool_ drain];
-}
-
 }  // namespace rtc