Pepper: Manifest ID cleanup.

ppapi/native_client/src/trusted/plugin/plugin.h

Index: ppapi/native_client/src/trusted/plugin/plugin.h
diff --git a/ppapi/native_client/src/trusted/plugin/plugin.h b/ppapi/native_client/src/trusted/plugin/plugin.h
index 617fa31eae79a9c5fe76b247d226a24fff56cfa5..d8f4d88c240d939c01421cc2509cca1b62b2bc24 100644
--- a/ppapi/native_client/src/trusted/plugin/plugin.h
+++ b/ppapi/native_client/src/trusted/plugin/plugin.h
@@ -176,7 +176,6 @@ class Plugin : public pp::Instance {
   // This will fully initialize the |subprocess| if the load was successful.
   bool LoadNaClModuleFromBackgroundThread(PP_FileHandle file_handle,
                                           NaClSubprocess* subprocess,
-                                          int32_t manifest_id,
                                           const SelLdrStartParams& params);
 
   // Start sel_ldr from the main thread, given the start params.
@@ -256,8 +255,6 @@ class Plugin : public pp::Instance {
   int64_t time_of_last_progress_event_;
   int exit_status_;
 
-  int32_t manifest_id_;
-
   PP_NaClFileInfo nexe_file_info_;
 
   const PPB_NaCl_Private* nacl_interface_;