[NaCl SDK] Create Filesystem nodes in /dev/fs/...

native_client_sdk/src/libraries/nacl_io/filesystem.h

Index: native_client_sdk/src/libraries/nacl_io/filesystem.h
diff --git a/native_client_sdk/src/libraries/nacl_io/filesystem.h b/native_client_sdk/src/libraries/nacl_io/filesystem.h
index ddec5d66aa19130dab9510ff4c32c3fd43b3bef5..47546b942a0c63820c09e618ea77de970b6b0137 100644
--- a/native_client_sdk/src/libraries/nacl_io/filesystem.h
+++ b/native_client_sdk/src/libraries/nacl_io/filesystem.h
@@ -58,6 +58,7 @@ class Filesystem : public sdk_util::RefObject {
 
  public:
   PepperInterface* ppapi() { return ppapi_; }
+  int dev() { return dev_; }
 
   // All paths in functions below are expected to containing a leading "/".
 
@@ -84,6 +85,7 @@ class Filesystem : public sdk_util::RefObject {
   virtual Error Rmdir(const Path& path) = 0;
   virtual Error Remove(const Path& path) = 0;
   virtual Error Rename(const Path& path, const Path& newpath) = 0;
+  virtual Error Filesystem_VIoctl(int request, va_list args);
 
   // Assumes that |node| is non-NULL.
   void OnNodeCreated(Node* node);