[NaCl SDK] nacl_io: Change default root filesystem type from passthroughfs to memfs

native_client_sdk/src/libraries/nacl_io/passthroughfs/real_node.cc

Index: native_client_sdk/src/libraries/nacl_io/passthroughfs/real_node.cc
diff --git a/native_client_sdk/src/libraries/nacl_io/passthroughfs/real_node.cc b/native_client_sdk/src/libraries/nacl_io/passthroughfs/real_node.cc
index 7f585f640c54b35c633801da9cbd46b08b436721..d09d86746ebb0dfb139fb3edcf3545f4ac041048 100644
--- a/native_client_sdk/src/libraries/nacl_io/passthroughfs/real_node.cc
+++ b/native_client_sdk/src/libraries/nacl_io/passthroughfs/real_node.cc
@@ -12,11 +12,13 @@
 #include "nacl_io/log.h"
 
 namespace nacl_io {
+
 RealNode::RealNode(Filesystem* filesystem, int real_fd, bool close_on_destroy)
   : Node(filesystem),
     real_fd_(real_fd),
     close_on_destroy_(close_on_destroy)
 {
+  GetStat(&stat_);
 }
 
 void RealNode::Destroy() {
@@ -89,11 +91,11 @@ Error RealNode::GetDents(size_t offs,
                          struct dirent* pdir,
                          size_t count,
                          int* out_bytes) {
-  size_t nread;
-  int err = _real_getdents(real_fd_, pdir, count, &nread);
-  if (err)
-    return err;
-  return nread;
+  size_t out_bytes_as_size_t;
+  Error rtn = _real_getdents(real_fd_, pdir, count, &out_bytes_as_size_t);
+  if (rtn == 0)
+    *out_bytes = out_bytes_as_size_t;
+  return rtn;
 }
 
 Error RealNode::GetStat(struct stat* stat) {