[WIP] Provided file system from NACL.

ppapi/api/pp_errors.idl

 /* Copyright (c) 2012 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.
  */
 
 /**
  * This file defines an enumeration of all PPAPI error codes.
  */
 
 /**
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    * This value indicates that the plugin sent bad input data to a resource,
    * leaving it in an invalid state. The resource can't be used after returning
    * this error and should be released.
    */
   PP_ERROR_MALFORMED_INPUT = -14,
   /**
    * This value indicates that a resource has failed.  The resource can't be
    * used after returning this error and should be released.
    */
   PP_ERROR_RESOURCE_FAILED = -15,
-
+  /**
+  * This value indicates that there is a security related issue
+  */
+  PP_ERROR_SECURITY = -16,
   /** This value indicates failure due to a file that does not exist. */
   PP_ERROR_FILENOTFOUND   = -20,
   /** This value indicates failure due to a file that already exists. */
   PP_ERROR_FILEEXISTS     = -21,
   /** This value indicates failure due to a file that is too big. */
   PP_ERROR_FILETOOBIG     = -22,
   /**
    * This value indicates failure due to a file having been modified
    * unexpectedly.
    */
   PP_ERROR_FILECHANGED    = -23,
   /** This value indicates that the pathname does not reference a file. */
   PP_ERROR_NOTAFILE       = -24,
+  /** This value indicates that the file is not empty */
+  PP_ERROR_FILENOTEMPTY   = -25,
+  /** Indicates that there are too many opened files */
+  PP_ERROR_FILE_TOO_MANY_OPENED = -26,
+  /** This value indicates that an IO error occured */
+  PP_ERROR_FILE_IO       = -27,
+  /** This value indicates that path is not a directory*/
+  PP_ERROR_NOTADIRECTORY = -28,
   /** This value indicates failure due to a time limit being exceeded. */
   PP_ERROR_TIMEDOUT       = -30,
   /**
    * This value indicates that the user cancelled rather than providing
    * expected input.
    */
   PP_ERROR_USERCANCEL     = -40,
   /**
    * This value indicates failure due to lack of a user gesture such as a
    * mouse click or key input event. Examples of actions requiring a user
@@ skipping 19 matching lines @@
   PP_ERROR_WRONG_THREAD   = -52,
   /**
    * Indicates that a null completion callback was used on a thread handling a
    * blocking message from JavaScript. Null completion callbacks "block until
    * complete", which could cause the main JavaScript thread to be blocked
    * excessively.
    */
   PP_ERROR_WOULD_BLOCK_THREAD   = -53,
 
   /**
+   * This value indicates that the provided url is malformed 
+   */
+  PP_ERROR_INVALID_URL = -99,
+  /**
    * This value indicates that the connection was closed. For TCP sockets, it
    * corresponds to a TCP FIN.
    */
   PP_ERROR_CONNECTION_CLOSED = -100,
   /**
    * This value indicates that the connection was reset. For TCP sockets, it
    * corresponds to a TCP RST.
    */
   PP_ERROR_CONNECTION_RESET = -101,
   /**
@@ skipping 30 matching lines @@
   PP_ERROR_ADDRESS_IN_USE = -108,
   /**
    * This value indicates that the message was too large for the transport.
    */
   PP_ERROR_MESSAGE_TOO_BIG = -109,
   /**
    * This value indicates that the host name could not be resolved.
    */
   PP_ERROR_NAME_NOT_RESOLVED = -110
 };
-