Use ChannelMojo between browser and service processes.

chrome/service/service_process.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_SERVICE_SERVICE_PROCESS_H_
 #define CHROME_SERVICE_SERVICE_PROCESS_H_
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/threading/thread.h"
 #include "chrome/service/cloud_print/cloud_print_proxy.h"
 #include "chrome/service/service_ipc_server.h"
+#include "mojo/edk/embedder/named_platform_handle.h"
+#include "mojo/edk/embedder/scoped_platform_handle.h"
+#include "mojo/public/cpp/system/message_pipe.h"
 
 class ServiceProcessPrefs;
 class ServiceURLRequestContextGetter;
 class ServiceProcessState;
 
 namespace base {
 class CommandLine;
 class SequencedWorkerPool;
 class WaitableEvent;
 }
@@ skipping 49 matching lines @@
     return &shutdown_event_;
   }
 
   // Shuts down the service process.
   void Shutdown();
 
   // ServiceIPCServer::Client implementation.
   void OnShutdown() override;
   void OnUpdateAvailable() override;
   bool OnIPCClientDisconnect() override;
+  mojo::ScopedMessagePipeHandle CreateChannelMessagePipe() override;
 
   // CloudPrintProxy::Provider implementation.
   cloud_print::CloudPrintProxy* GetCloudPrintProxy() override;
 
   // CloudPrintProxy::Client implementation.
   void OnCloudPrintProxyEnabled(bool persist_state) override;
   void OnCloudPrintProxyDisabled(bool persist_state) override;
 
   ServiceURLRequestContextGetter* GetServiceURLRequestContextGetter();
 
@@ skipping 35 matching lines @@
   base::MessageLoop* main_message_loop_;
 
   // Count of currently enabled services in this process.
   int enabled_services_;
 
   // Speficies whether a product update is available.
   bool update_available_;
 
   scoped_refptr<ServiceURLRequestContextGetter> request_context_getter_;
 
+#if defined(OS_POSIX)
+  mojo::edk::ScopedPlatformHandle server_handle_;
+#elif defined(OS_WIN)
+  mojo::edk::NamedPlatformHandle server_handle_;
+#endif
+
   DISALLOW_COPY_AND_ASSIGN(ServiceProcess);
 };
 
 extern ServiceProcess* g_service_process;
 
 #endif  // CHROME_SERVICE_SERVICE_PROCESS_H_