Pepper: Nexe downloading out of the trusted plugin.

ppapi/api/private/ppb_nacl_private.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 contains NaCl private interfaces. This interface is not versioned
  * and is for internal Chrome use. It may change without notice. */
 
 label Chrome {
   M25 = 1.0
@@ skipping 283 matching lines @@
   /* Dispatch a progress event on the DOM element where the given instance is
    * embedded.
    */
   void DispatchEvent([in] PP_Instance instance,
                      [in] PP_NaClEventType event_type,
                      [in] str_t resource_url,
                      [in] PP_Bool length_is_computable,
                      [in] uint64_t loaded_bytes,
                      [in] uint64_t total_bytes);
 
-  /* Report that the attempt to open the nexe has finished. Opening the file
-   * may have failed, as indicated by a pp_error value that is not PP_OK or an
-   * fd of -1. Failure to stat the file to determine its length results in
-   * nexe_bytes_read being -1.
-   */
-  void NexeFileDidOpen([in] PP_Instance instance,
-                       [in] int32_t pp_error,
-                       [in] int32_t fd,
-                       [in] int32_t http_status,
-                       [in] int64_t nexe_bytes_read,
-                       [in] str_t url,
-                       [in] int64_t time_since_open);
-
   /* Report that the nexe loaded successfully. */
   void ReportLoadSuccess([in] PP_Instance instance,
                          [in] str_t url,
                          [in] uint64_t loaded_bytes,
                          [in] uint64_t total_bytes);
 
   /* Report an error that occured while attempting to load a nexe. */
   void ReportLoadError([in] PP_Instance instance,
                        [in] PP_NaClError error,
                        [in] str_t error_message,
@@ skipping 118 matching lines @@
   // by the current architecture. The string is a comma-delimited list
   // of attributes supported by LLVM in its -mattr= option:
   //   http://llvm.org/docs/CommandGuide/llc.html#cmdoption-mattr
   PP_Var GetCpuFeatureAttrs();
 
   /* Posts a message to the JavaScript object for the given instance.
    * This method may be called on any thread.
    */
   void PostMessageToJavaScript([in] PP_Instance instance,
                                [in] str_t message);
+
+  /* Downloads the .nexe file at the given URL to a file, and populates
+   * |handle| with a handle to a file containing its contents. */
+  void DownloadNexe([in] PP_Instance instance,
+                    [in] str_t url,
+                    [out] PP_FileHandle handle,
+                    [in] PP_CompletionCallback callback);
 };