Use ChannelMojo in Pepper and NaCl processes.

components/nacl/common/nacl_messages.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.
 
 // Defines messages between the browser and NaCl process.
 
 // Multiply-included message file, no traditional include guard.
 
 #include <stdint.h>
 
@@ skipping 12 matching lines @@
   IPC_STRUCT_TRAITS_MEMBER(nexe_file_path_metadata)
   IPC_STRUCT_TRAITS_MEMBER(irt_handle)
 #if defined(OS_POSIX)
   IPC_STRUCT_TRAITS_MEMBER(debug_stub_server_bound_socket)
 #endif
 #if defined(OS_LINUX) || defined(OS_NACL_NONSFI)
   IPC_STRUCT_TRAITS_MEMBER(ppapi_browser_channel_handle)
   IPC_STRUCT_TRAITS_MEMBER(ppapi_renderer_channel_handle)
   IPC_STRUCT_TRAITS_MEMBER(trusted_service_channel_handle)
   IPC_STRUCT_TRAITS_MEMBER(manifest_service_channel_handle)
+  IPC_STRUCT_TRAITS_MEMBER(ppapi_browser_mojo_handle)
 #endif
   IPC_STRUCT_TRAITS_MEMBER(validation_cache_enabled)
   IPC_STRUCT_TRAITS_MEMBER(validation_cache_key)
   IPC_STRUCT_TRAITS_MEMBER(version)
   IPC_STRUCT_TRAITS_MEMBER(enable_debug_stub)
   IPC_STRUCT_TRAITS_MEMBER(process_type)
   IPC_STRUCT_TRAITS_MEMBER(crash_info_shmem_handle)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(nacl::NaClResourcePrefetchResult)
@@ skipping 81 matching lines @@
 
 // Notify the browser process that the server side of the PPAPI channel was
 // created successfully.
 // This is used for SFI mode only. Non-SFI mode passes channel handles in
 // NaClStartParams instead.
 IPC_MESSAGE_CONTROL4(NaClProcessHostMsg_PpapiChannelsCreated,
                      IPC::ChannelHandle, /* browser_channel_handle */
                      IPC::ChannelHandle, /* ppapi_renderer_channel_handle */
                      IPC::ChannelHandle, /* trusted_renderer_channel_handle */
                      IPC::ChannelHandle /* manifest_service_channel_handle */)