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

webrtc/base/logging.h

Index: webrtc/base/logging.h
diff --git a/webrtc/base/logging.h b/webrtc/base/logging.h
index 8c7b3f70e5284a5c0a7b76f69ab5e05ac089a7a8..886b5d88f70c9c899f26d07188007627911ffb7e 100644
--- a/webrtc/base/logging.h
+++ b/webrtc/base/logging.h
@@ -51,6 +51,10 @@
 #include <string>
 #include <utility>
 
+#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
+#include <CoreServices/CoreServices.h>
+#endif
+
 #include "webrtc/base/basictypes.h"
 #include "webrtc/base/constructormagic.h"
 #include "webrtc/base/thread_annotations.h"
@@ -80,6 +84,11 @@ struct ConstantLabel { int value; const char * label; };
 const char* FindLabel(int value, const ConstantLabel entries[]);
 std::string ErrorName(int err, const ConstantLabel* err_table);
 
+#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
+// Returns a UTF8 description from an OS X Status error.
+std::string DescriptionFromOSStatus(OSStatus err);
+#endif
+
 //////////////////////////////////////////////////////////////////////
 
 // Note that the non-standard LoggingSeverity aliases exist because they are