Pepper: Fix caching for translated nexes.

ppapi/api/private/ppp_pexe_stream_handler.idl

 /* Copyright 2014 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 contains NaCl private interfaces. This interface is not versioned
  * and is for internal Chrome use. It may change without notice. */
 
 #inline c
 #include "ppapi/c/private/pp_file_handle.h"
 #endinl
 
 label Chrome {
   M25 = 1.0
 };
 
 interface PPP_PexeStreamHandler {
   /**
    * Invoked as a result of a cache hit for a translated pexe.
    */
   void DidCacheHit([inout] mem_t user_data,
                    [in] PP_FileHandle nexe_file_handle);
 
   /**
    * Invoked as a result of a cache miss for a translated pexe.
    * Provides the expected length of the pexe, as read from HTTP headers.
    */
   void DidCacheMiss([inout] mem_t user_data,
-                    [in] int64_t expected_total_length);
+                    [in] int64_t expected_total_length,
+                    [in] PP_FileHandle temp_nexe_file);
 
   /**
    * Invoked when a block of data has been downloaded.
    * Only invoked after DidCacheMiss().
    */
   void DidStreamData([inout] mem_t user_data,
                      [in] mem_t data,
                      [in] int32_t length);
 
   /**
    * Invoked when the stream has finished downloading, regardless of whether it
    * succeeded. Not invoked if DidCacheHit() was called.
    */
   void DidFinishStream([inout] mem_t user_data,
                        [in] int32_t pp_error);
 };