When launching PNaCl helper nexes, explicitly disable IRT loading.

ppapi/c/private/ppb_nacl_private.h

 /* 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.
  */
 
-/* From private/ppb_nacl_private.idl modified Thu Dec 13 13:40:29 2012. */
+/* From private/ppb_nacl_private.idl modified Thu Jan  3 12:40:35 2013. */
 
 #ifndef PPAPI_C_PRIVATE_PPB_NACL_PRIVATE_H_
 #define PPAPI_C_PRIVATE_PPB_NACL_PRIVATE_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_stdint.h"
 
 #define PPB_NACL_PRIVATE_INTERFACE_1_0 "PPB_NaCl_Private;1.0"
@@ skipping 45 matching lines @@
  */
 /* PPB_NaCl_Private */
 struct PPB_NaCl_Private_1_0 {
   /* Launches NaCl's sel_ldr process.  Returns PP_NACL_OK on success and writes
    * |socket_count| nacl::Handles to imc_handles. Returns PP_NACL_FAILED on
    * failure. The |enable_ppapi_dev| parameter controls whether GetInterface
    * returns 'Dev' interfaces to the NaCl plugin.  The |uses_ppapi| flag
    * indicates that the nexe run by sel_ldr will use the PPAPI APIs.
    * This implies that LaunchSelLdr is run from the main thread.  If a nexe
    * does not need PPAPI, then it can run off the main thread.
+   * The |uses_irt| flag indicates if a nexe depends on the IRT or not.
+   * This is true for ABI stable nexes.
    */
   PP_NaClResult (*LaunchSelLdr)(PP_Instance instance,
                                 const char* alleged_url,
                                 PP_Bool uses_ppapi,
                                 PP_Bool enable_ppapi_dev,
                                 int32_t socket_count,
+                                PP_Bool uses_irt,
                                 void* imc_handles);
   /* This function starts the IPC proxy so the nexe can communicate with the
    * browser. Returns PP_NACL_OK on success, otherwise a result code indicating
    * the failure. PP_NACL_FAILED is returned if LaunchSelLdr wasn't called with
    * the instance. PP_NACL_ERROR_MODULE is returned if the module can't be
    * initialized. PP_NACL_ERROR_INSTANCE is returned if the instance can't be
    * initialized. PP_NACL_USE_SRPC is returned if the plugin should use SRPC.
    */
   PP_NaClResult (*StartPpapiProxy)(PP_Instance instance);
   /* On POSIX systems, this function returns the file descriptor of
@@ skipping 41 matching lines @@
                                    PP_NaClError message_id);
 };
 
 typedef struct PPB_NaCl_Private_1_0 PPB_NaCl_Private;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PRIVATE_PPB_NACL_PRIVATE_H_ */