Pepper: Report NaCl exit status over Chromium IPC.

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 ce3273dd2cb88f8572c3456725c5431398030944..a55b62d1c3be77fd47f8f358ded87696dbbe04cf 100644
--- a/ppapi/native_client/src/trusted/plugin/plugin.h
+++ b/ppapi/native_client/src/trusted/plugin/plugin.h
@@ -127,9 +127,6 @@ class Plugin : public pp::Instance {
   // document to request the URL using CORS even if this function returns false.
   bool DocumentCanRequest(const std::string& url);
 
-  // set_exit_status may be called off the main thread.
-  void set_exit_status(int exit_status);
-
   const PPB_NaCl_Private* nacl_interface() const { return nacl_interface_; }
   pp::UMAPrivate& uma_interface() { return uma_interface_; }
 
@@ -206,8 +203,6 @@ class Plugin : public pp::Instance {
   // Processes the JSON manifest string and starts loading the nexe.
   void ProcessNaClManifest(const nacl::string& manifest_json);
 
-  void SetExitStatusOnMainThread(int32_t pp_error, int exit_status);
-
   // Keep track of the NaCl module subprocess that was spun up in the plugin.
   NaClSubprocess main_subprocess_;