Use ChannelMojo from the browser to NaCl loader process.

components/nacl/browser/nacl_broker_host_win.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 COMPONENTS_NACL_BROWSER_NACL_BROKER_HOST_WIN_H_
 #define COMPONENTS_NACL_BROWSER_NACL_BROKER_HOST_WIN_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 39 matching lines @@
   void OnLoaderLaunched(const std::string& loader_channel_id,
                         base::ProcessHandle handle);
   // Handler for NaClProcessMsg_DebugExceptionHandlerLaunched message
   void OnDebugExceptionHandlerLaunched(int32_t pid, bool success);
 
   // BrowserChildProcessHostDelegate implementation:
   bool OnMessageReceived(const IPC::Message& msg) override;
 
   std::unique_ptr<content::BrowserChildProcessHost> process_;
   bool is_terminating_;
+  const std::string mojo_child_token_;
 
   DISALLOW_COPY_AND_ASSIGN(NaClBrokerHost);
 };
 
 }  // namespace nacl
 
 #endif  // COMPONENTS_NACL_BROWSER_NACL_BROKER_HOST_WIN_H_