Initialise and use ChannelMojo to the service utility process.

chrome/service/service_process.cc

Index: chrome/service/service_process.cc
diff --git a/chrome/service/service_process.cc b/chrome/service/service_process.cc
index dba9f442b06bc43052420897a680e4a52418729a..bea34bb8783206f4345369216e18ec5315343244 100644
--- a/chrome/service/service_process.cc
+++ b/chrome/service/service_process.cc
@@ -38,6 +38,8 @@
 #include "chrome/service/service_process_prefs.h"
 #include "components/network_session_configurator/switches.h"
 #include "components/prefs/json_pref_store.h"
+#include "mojo/edk/embedder/embedder.h"
+#include "mojo/edk/embedder/scoped_ipc_support.h"
 #include "net/base/network_change_notifier.h"
 #include "net/url_request/url_fetcher.h"
 #include "ui/base/l10n/l10n_util.h"
@@ -154,6 +156,11 @@ bool ServiceProcess::Initialize(base::MessageLoopForUI* message_loop,
   }
   blocking_pool_ = new base::SequencedWorkerPool(3, "ServiceBlocking");
 
+  // Initialize Mojo early so things can use it.
+  mojo::edk::Init();
+  mojo_ipc_support_.reset(
+      new mojo::edk::ScopedIPCSupport(io_thread_->task_runner()));
+
   request_context_getter_ = new ServiceURLRequestContextGetter();
 
   base::FilePath user_data_dir;
@@ -225,6 +232,7 @@ bool ServiceProcess::Teardown() {
   service_prefs_.reset();
   cloud_print_proxy_.reset();
 
+  mojo_ipc_support_.reset();
   ipc_server_.reset();
   // Signal this event before shutting down the service process. That way all
   // background threads can cleanup.