Pepper: Simplify LaunchSelLdr error reporting.

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

 /* -*- c++ -*- */
 /*
  * 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.
  */
 
 // A class containing information regarding a socket connection to a
 // service runtime instance.
 
@@ skipping 212 matching lines @@
   // To establish quota callbacks the pnacl coordinator needs to communicate
   // with the reverse interface.
   PluginReverseInterface* rev_interface() const { return rev_interface_; }
 
  private:
   NACL_DISALLOW_COPY_AND_ASSIGN(ServiceRuntime);
   bool SetupCommandChannel(ErrorInfo* error_info);
   bool LoadModule(nacl::DescWrapper* shm, ErrorInfo* error_info);
   bool InitReverseService(ErrorInfo* error_info);
   bool StartModule(ErrorInfo* error_info);
-  void StartSelLdrContinuation(int32_t pp_error,
-                               pp::CompletionCallback callback);
 
   NaClSrpcChannel command_channel_;
   Plugin* plugin_;
   bool main_service_runtime_;
   bool uses_nonsfi_mode_;
   nacl::ReverseService* reverse_service_;
   nacl::scoped_ptr<nacl::SelLdrLauncherBase> subprocess_;
 
   nacl::WeakRefAnchor* anchor_;
 
   PluginReverseInterface* rev_interface_;
 
   // Mutex to protect exit_status_.
   // Also, in conjunction with cond_ it is used to signal when
   // StartSelLdr is complete with either success or error.
   NaClMutex mu_;
   NaClCondVar cond_;
   int exit_status_;
   bool start_sel_ldr_done_;
 
-  PP_Var start_sel_ldr_error_message_;
   pp::CompletionCallbackFactory<ServiceRuntime> callback_factory_;
 };
 
 }  // namespace plugin
 
 #endif  // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_SERVICE_RUNTIME_H_