Pepper: Move DoPostMessage out of trusted plugin.

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 Mon May  5 13:49:42 2014. */
+/* From private/ppb_nacl_private.idl modified Tue May  6 13:41:11 2014. */
 
 #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_completion_callback.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_stdint.h"
 #include "ppapi/c/pp_var.h"
@@ skipping 406 matching lines @@
                                 const char* key,
                                 struct PP_Var* full_url,
                                 struct PP_PNaClOptions* pnacl_options);
   /* Returns the filenames for the llc and ld tools, parsing that information
    * from the file given in |filename|.
    */
   PP_Bool (*GetPnaclResourceInfo)(PP_Instance instance,
                                   const char* filename,
                                   struct PP_Var* llc_tool_name,
                                   struct PP_Var* ld_tool_name);
+  /* Posts a message to the JavaScript object for the given instance.
+   * This method may be called on any thread.
+   */
+  void (*PostMessageToJavaScript)(PP_Instance instance, const char* message);
 };
 
 typedef struct PPB_NaCl_Private_1_0 PPB_NaCl_Private;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PRIVATE_PPB_NACL_PRIVATE_H_ */