Fix OperatingSystemName and OperatingSystemVersion on Mac

base/sys_info_posix.cc

 // Copyright (c) 2010 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/sys_info.h"
 
 #include <errno.h>
 #include <string.h>
 #include <sys/param.h>
 #include <sys/statvfs.h>
@@ skipping 28 matching lines @@
 
 // static
 int64 SysInfo::AmountOfFreeDiskSpace(const FilePath& path) {
   struct statvfs stats;
   if (statvfs(path.value().c_str(), &stats) != 0) {
     return -1;
   }
   return static_cast<int64>(stats.f_bavail) * stats.f_frsize;
 }
 
+#if !defined(OS_MACOSX)
 // static
 std::string SysInfo::OperatingSystemName() {
   utsname info;
   if (uname(&info) < 0) {
     NOTREACHED();
     return "";
   }
   return std::string(info.sysname);
 }
 
 // static
 std::string SysInfo::OperatingSystemVersion() {
   utsname info;
   if (uname(&info) < 0) {
     NOTREACHED();
     return "";
   }
   return std::string(info.release);
 }
+#endif
 
 // static
 std::string SysInfo::CPUArchitecture() {
   utsname info;
   if (uname(&info) < 0) {
     NOTREACHED();
     return "";
   }
   return std::string(info.machine);
 }
@@ skipping 21 matching lines @@
   return gdk_screen_get_n_monitors(screen);
 }
 #endif
 
 // static
 size_t SysInfo::VMAllocationGranularity() {
   return getpagesize();
 }
 
 }  // namespace base