posix: replace nonstandard futimes call with futimens

base/platform_file_posix.cc

Index: base/platform_file_posix.cc
diff --git a/base/platform_file_posix.cc b/base/platform_file_posix.cc
index 646c82e8dfd2ec74e6a600a4874f191f360776e9..86073af270d99b87c2f14959cb9f5dceb287ba79 100644
--- a/base/platform_file_posix.cc
+++ b/base/platform_file_posix.cc
@@ -298,10 +298,11 @@ bool TouchPlatformFile(PlatformFile file, const base::Time& last_access_time,
   if (file < 0)
     return false;
 
-  timeval times[2];
-  times[0] = last_access_time.ToTimeVal();
-  times[1] = last_modified_time.ToTimeVal();
-  return !futimes(file, times);
+  timespec times[2];
+  times[0] = last_access_time.ToTimeSpec();
+  times[1] = last_modified_time.ToTimeSpec();
+
+  return !futimens(file, times);
 }
 
 bool GetPlatformFileInfo(PlatformFile file, PlatformFileInfo* info) {