[NaCl SDK] nacl_io: Allows subtree of html5fs to be mounted.

native_client_sdk/src/libraries/nacl_io/node.cc

Index: native_client_sdk/src/libraries/nacl_io/node.cc
diff --git a/native_client_sdk/src/libraries/nacl_io/node.cc b/native_client_sdk/src/libraries/nacl_io/node.cc
index 2024e9753b18f05619c02bf52dd08e58f033c85e..373f96656ec3e7bda14fb21ea56623c6099ecc67 100644
--- a/native_client_sdk/src/libraries/nacl_io/node.cc
+++ b/native_client_sdk/src/libraries/nacl_io/node.cc
@@ -200,15 +200,15 @@ void Node::SetType(int type) {
 }
 
 bool Node::IsaDir() {
-  return (stat_.st_mode & S_IFDIR) != 0;
+  return GetType() == S_IFDIR;
 }
 
 bool Node::IsaFile() {
-  return (stat_.st_mode & S_IFREG) != 0;
+  return GetType() == S_IFREG;
 }
 
 bool Node::IsaSock() {
-  return (stat_.st_mode & S_IFSOCK) != 0;
+  return GetType() == S_IFSOCK;
 }
 
 Error Node::Isatty() {