PPAPI: Add PluginPrivateFileSystem

ppapi/api/private/ppb_isolated_file_system_private.idl

 /* 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.
  */
 
 [generate_thunk,thunk_include="ppapi/thunk/ppb_isolated_file_system_private_api.h"]
 
 /**
  * This file contains the <code>PPB_IsolatedFileSystem_Private</code> interface.
  */
 label Chrome {
-  M33 = 0.1
+  M33 = 0.2
 };
 
 
 /**
  * The <code>PP_IsolatedFileSystemType_Private</code> values indicate the type
  * of isolated file systems.
  */
 [assert_size(4)]
 enum PP_IsolatedFileSystemType_Private {
   /** Type for invalid file systems */
   PP_ISOLATEDFILESYSTEMTYPE_PRIVATE_INVALID = 0,
   /** Type for CRX file systems */
-  PP_ISOLATEDFILESYSTEMTYPE_PRIVATE_CRX = 1
+  PP_ISOLATEDFILESYSTEMTYPE_PRIVATE_CRX = 1,
+  /** Type for PluginPrivate file systems */
+  PP_ISOLATEDFILESYSTEMTYPE_PRIVATE_PLUGINPRIVATE = 2
 };
 
 /* <code>PPB_IsolatedFileSystem_Private</code> interface */
 interface PPB_IsolatedFileSystem_Private {
   /**
    * Open() opens a file system corresponding the given file system type.
    *
    * When opening the CRX file system, this should be called from an extension
    * context, otherwise it will fail. 
    *
    * @param[in] instance A <code>PP_Instance</code> identifying the instance
    * with the file system.
    * @param[in] type A file system type as defined by
    * <code>PP_IsolatedFileSystemType_Private</code> enum.
    * @param[out] file_system An output <code>PP_Resource</code> corresponding
    * to a PPB_FileSystem.
    * @param[in] callback A <code>PP_CompletionCallback</code> to be called upon
    * completion of Open.
    *
    * @return An int32_t containing an error code from <code>pp_errors.h</code>.
    */
   [singleton,api=PPB_IsolatedFileSystem_Private_API]
   int32_t Open([in] PP_Instance instance,
                [in] PP_IsolatedFileSystemType_Private type,
                [out] PP_Resource file_system,
                [in] PP_CompletionCallback callback);
 };