Rearrange mojo/nacl files.

nacl_bindings/irt_entry_mojo.c

 // Copyright 2014 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.
 
-#include "mojo/nacl/mojo_irt.h"
+#include "mojo/public/platform/nacl/mojo_irt.h"
 #include "native_client/src/public/irt_core.h"
 
 static size_t irt_query(const char* interface_ident,
                         void* table, size_t tablesize) {
   // TODO(teravest): Add query for the Mojo IRT interface, when introduced.
   size_t rc = mojo_irt_query(interface_ident, table, tablesize);
   if (rc != 0)
     return rc;
 
   return nacl_irt_query_core(interface_ident, table, tablesize);
 }
 
 void nacl_irt_start(uint32_t* info) {
   nacl_irt_init(info);
   nacl_irt_enter_user_code(info, irt_query);
 }