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

native_client_sdk/src/libraries/nacl_io/html5fs/html5_fs.h

 // Copyright 2013 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.
 
 #ifndef LIBRARIES_NACL_IO_HTML5FS_HTML5_FS_H_
 #define LIBRARIES_NACL_IO_HTML5FS_HTML5_FS_H_
 
 #include <pthread.h>
 
 #include "nacl_io/filesystem.h"
@@ skipping 11 matching lines @@
   virtual Error Open(const Path& path, int mode, ScopedNode* out_node);
   virtual Error Unlink(const Path& path);
   virtual Error Mkdir(const Path& path, int permissions);
   virtual Error Rmdir(const Path& path);
   virtual Error Remove(const Path& path);
   virtual Error Rename(const Path& path, const Path& newpath);
 
   PP_Resource filesystem_resource() { return filesystem_resource_; }
 
  protected:
+  static const int REMOVE_DIR = 1;
+  static const int REMOVE_FILE = 2;
+  static const int REMOVE_ALL = REMOVE_DIR | REMOVE_FILE;
+
   Html5Fs();
 
   virtual Error Init(const FsInitArgs& args);
   virtual void Destroy();
 
+  virtual Error RemoveInternal(const Path& path, int remove_type);

[binji, 2014/06/09 20:54:29]

does this need to be virtual?

   Error BlockUntilFilesystemOpen();
 
  private:
   static void FilesystemOpenCallbackThunk(void* user_data, int32_t result);
   void FilesystemOpenCallback(int32_t result);
+  Path GetFullPath(const Path& path);
 
   PP_Resource filesystem_resource_;
   bool filesystem_open_has_result_;  // protected by lock_.
   Error filesystem_open_error_;      // protected by lock_.
 
   pthread_cond_t filesystem_open_cond_;
   sdk_util::SimpleLock filesysem_open_lock_;
+  std::string prefix_;
 
   friend class TypedFsFactory<Html5Fs>;
 };
 
 }  // namespace nacl_io
 
 #endif  // LIBRARIES_NACL_IO_HTML5FS_HTML5_FS_H_