Revert 284684 "Pepper: Delete FileDownloader in trusted plugin."

trunk/src/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 219 matching lines @@
    * returns a posix handle to that temporary file.
    */
   PP_FileHandle CreateTemporaryFile([in] PP_Instance instance);
 
   /* Return the number of processors in the system as reported by the OS */
   int32_t GetNumberOfProcessors();
 
   /* Return whether the non-SFI mode is enabled. */
   PP_Bool IsNonSFIModeEnabled();
 
+  /* Create a temporary file, which will be deleted by the time the
+   * last handle is closed (or earlier on POSIX systems), to use for
+   * the nexe with the cache information given by |pexe_url|,
+   * |abi_version|, |opt_level|, and |headers|.  If the nexe is already present
+   * in the cache, |is_hit| is set to PP_TRUE and the contents of the nexe will
+   * be copied into the temporary file. Otherwise |is_hit| is set to PP_FALSE
+   * and the temporary file will be writeable.  Currently the implementation is
+   * a stub, which always sets is_hit to false and calls the implementation of
+   * CreateTemporaryFile. In a subsequent CL it will call into the browser
+   * which will remember the association between the cache key and the fd, and
+   * copy the nexe into the cache after the translation finishes.
+   */
+  int32_t GetNexeFd([in] PP_Instance instance,
+                    [in] str_t pexe_url,
+                    [in] uint32_t abi_version,
+                    [in] uint32_t opt_level,
+                    [in] str_t headers,
+                    [in] str_t extra_flags,
+                    [out] PP_Bool is_hit,
+                    [out] PP_FileHandle nexe_handle,
+                    [in] PP_CompletionCallback callback);
+
   /* Report to the browser that translation of the pexe for |instance|
    * has finished, or aborted with an error. If |success| is true, the
    * browser may then store the translation in the cache. The renderer
    * must first have called GetNexeFd for the same instance. (The browser is
    * not guaranteed to store the nexe even if |success| is true; if there is
    * an error on the browser side, or the file is too big for the cache, or
    * the browser is in incognito mode, no notification will be delivered to
    * the plugin.)
    */
   void ReportTranslationFinished([in] PP_Instance instance,
@@ skipping 140 matching lines @@
   void OpenManifestEntry([in] PP_Instance instance,
                          [in] PP_Bool is_helper_process,
                          [in] str_t key,
                          [out] PP_NaClFileInfo file_info,
                          [in] PP_CompletionCallback callback);
 
   /* Sets the start time for PNaCl downloading and translation to the current
    * time.
    */
   void SetPNaClStartTime([in] PP_Instance instance);
-
-  /* Downloads and streams a pexe file for PNaCl translation.
-   * Fetches the content at |pexe_url| for the given instance and opt_level.
-   * If a translated cached nexe is already available, |cache_hit_handle|
-   * is set and |cache_hit_callback| is called.
-   * Otherwise, |stream_callback| is called repeatedly with blocks of data
-   * as they are received. |stream_finished_callback| is called after all
-   * data has been received and dispatched to |stream_callback|.
-   */
-  void StreamPexe([in] PP_Instance instance,
-                  [in] str_t pexe_url,
-                  [in] int32_t opt_level,
-                  [in] PPP_PexeStreamHandler stream_handler,
-                  [inout] mem_t stream_handler_user_data);
 };