Pass the nacl start parameters as a struct.

chrome/browser/nacl_host/nacl_process_host.h

 // 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.
 
 #ifndef CHROME_BROWSER_NACL_HOST_NACL_PROCESS_HOST_H_
 #define CHROME_BROWSER_NACL_HOST_NACL_PROCESS_HOST_H_
 #pragma once
 
 #include "build/build_config.h"
 
@@ skipping 66 matching lines @@
   FilePath GetManifestPath();
   bool LaunchSelLdr();
 
   // BrowserChildProcessHostDelegate implementation:
   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
   virtual void OnProcessCrashed(int exit_code) OVERRIDE;
   virtual void OnProcessLaunched() OVERRIDE;
 
   void IrtReady();
 
-  // Sends the start command with file handles to an opened NaCl process.
-  // Returns false on failure.
+  // Sends the reply message to the renderer who is waiting for the plugin
+  // to load. Returns true on success.
+  bool ReplyToRenderer();
+
+  // Sends the message to the NaCl process to load the plugin. Returns true
+  // on success.
+  bool StartNaClExecution();
+
+  // Called once all initialization is complete and the NaCl process is
+  // ready to go. Returns true on success.
   bool SendStart();
 
   // Does post-process-launching tasks for starting the NaCl process once
   // we have a connection.
   //
   // Returns false on failure.
   bool StartWithLaunchedProcess();
 
   // Message handlers for validation caching.
   void OnQueryKnownToValidate(const std::string& signature, bool* result);
@@ skipping 33 matching lines @@
   base::WeakPtrFactory<NaClProcessHost> weak_factory_;
 
   scoped_ptr<content::BrowserChildProcessHost> process_;
 
   bool enable_exception_handling_;
 
   DISALLOW_COPY_AND_ASSIGN(NaClProcessHost);
 };
 
 #endif  // CHROME_BROWSER_NACL_HOST_NACL_PROCESS_HOST_H_