Use ChannelMojo from the browser to NaCl loader process.

content/BUILD.gn

 # 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.
 
 import("//tools/grit/grit_rule.gni")
 import("//build/config/nacl/config.gni")
 
 # Applied by targets internal to content.
 config("content_implementation") {
   defines = [ "CONTENT_IMPLEMENTATION" ]
@@ skipping 71 matching lines @@
     ]
   }
 } else if (is_nacl_nonsfi) {
   source_set("content") {
     set_sources_assignment_filter([])
     sources = [
       "common/sandbox_linux/sandbox_init_linux.cc",
       "common/sandbox_linux/sandbox_seccomp_bpf_linux.cc",
       "common/send_zygote_child_ping_linux.cc",
       "public/common/content_switches.cc",
+      "public/common/mojo_channel_switches.cc",
     ]
     set_sources_assignment_filter(sources_assignment_filter)
 
     defines = [ "USE_SECCOMP_BPF=1" ]
 
     deps = [
       "//base",
       "//sandbox/linux:sandbox",
     ]
   }
@@ skipping 42 matching lines @@
     sources = [
       "app/sandbox_helper_win.cc",
       "public/app/sandbox_helper_win.h",
     ]
 
     deps = [
       "//sandbox",
     ]
   }
 }