Pepper: Remove program_url in trusted plugin.

ppapi/native_client/src/trusted/plugin/plugin.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.
 
 // The portable representation of an instance and root scriptable object.
 // The PPAPI version of the plugin instantiates a subclass of this class.
 
 #ifndef NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PLUGIN_H_
 #define NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PLUGIN_H_
@@ skipping 199 matching lines @@
 
   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_;
 
   bool uses_nonsfi_mode_;
 
   nacl::DescWrapperFactory* wrapper_factory_;
 
-  // Original, unresolved URL for the .nexe program to load.
-  std::string program_url_;
-
   pp::CompletionCallbackFactory<Plugin> callback_factory_;
 
   nacl::scoped_ptr<PnaclCoordinator> pnacl_coordinator_;
 
   int exit_status_;
 
   PP_NaClFileInfo nexe_file_info_;
 
   const PPB_NaCl_Private* nacl_interface_;
   pp::UMAPrivate uma_interface_;
 };
 
 }  // namespace plugin
 
 #endif  // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PLUGIN_H_