Use ChannelMojo between the remoting daemon and network processes.

remoting/host/host_main.cc

Index: remoting/host/host_main.cc
diff --git a/remoting/host/host_main.cc b/remoting/host/host_main.cc
index f2afe5f7dbad67625154d71c2369020cc97fefc5..ff5bfd4705522ae8b2dcf8d580444fd6287cd9a3 100644
--- a/remoting/host/host_main.cc
+++ b/remoting/host/host_main.cc
@@ -19,6 +19,7 @@
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
+#include "mojo/edk/embedder/embedder.h"
 #include "remoting/base/breakpad.h"
 #include "remoting/host/host_exit_codes.h"
 #include "remoting/host/logging.h"
@@ -211,6 +212,10 @@ int HostMain(int argc, char** argv) {
 
   remoting::LoadResources("");
 
+#if defined(REMOTING_MULTI_PROCESS)
+  mojo::edk::Init();
+#endif
+
   // Invoke the entry point.
   int exit_code = main_routine();
   if (exit_code == kInvalidCommandLineExitCode) {