Set up a NaCl load status callback to start replacing "start_module".

components/nacl/loader/nacl_listener.h

 // Copyright 2013 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.
 
 #ifndef CHROME_NACL_NACL_LISTENER_H_
 #define CHROME_NACL_NACL_LISTENER_H_
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 30 matching lines @@
   }
 #endif
 #if defined(OS_POSIX)
   void set_number_of_cores(int number_of_cores) {
     number_of_cores_ = number_of_cores;
   }
 #endif
 
   void* crash_info_shmem_memory() const { return crash_info_shmem_->memory(); }
 
+  NaClTrustedListener* trusted_listener() const {
+    return trusted_listener_.get();
+  }
+
   typedef base::Callback<void(IPC::PlatformFileForTransit, base::FilePath)>
       ResolveFileTokenCallback;
   void ResolveFileToken(uint64_t token_lo,
                         uint64_t token_hi,
                         ResolveFileTokenCallback cb);
   void OnFileTokenResolved(uint64_t token_lo,
                            uint64_t token_hi,
                            IPC::PlatformFileForTransit ipc_fd,
                            base::FilePath file_path);
 
@@ skipping 29 matching lines @@
 
   ResolveFileTokenCallback resolved_cb_;
 
   // Used to identify what thread we're on.
   base::MessageLoop* main_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(NaClListener);
 };
 
 #endif  // CHROME_NACL_NACL_LISTENER_H_