[WIP] Provided file system from NACL.

ppapi/api/pp_errors.idl

Index: ppapi/api/pp_errors.idl
diff --git a/ppapi/api/pp_errors.idl b/ppapi/api/pp_errors.idl
index b17e87c73ee1326751f9b717332296a3f6c7a981..e6c401436e96c2c05f67420ae51f294aa7a7f7d1 100644
--- a/ppapi/api/pp_errors.idl
+++ b/ppapi/api/pp_errors.idl
@@ -96,7 +96,10 @@
    * 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. */
@@ -110,6 +113,14 @@
   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,
   /**
@@ -149,6 +160,10 @@
   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.
    */
@@ -199,4 +214,3 @@
    */
   PP_ERROR_NAME_NOT_RESOLVED = -110
 };
-