Use ChannelMojo between the remoting daemon and desktop processes.

remoting/host/desktop_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 REMOTING_HOST_DESKTOP_PROCESS_H_
 #define REMOTING_HOST_DESKTOP_PROCESS_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "ipc/ipc_listener.h"
+#include "mojo/public/cpp/system/message_pipe.h"
 #include "remoting/host/desktop_session_agent.h"
 
 namespace IPC {
 class ChannelProxy;
 }  // namespace IPC
 
 namespace remoting {
 
 class AutoThreadTaskRunner;
 class DesktopEnvironment;
 class DesktopEnvironmentFactory;
 class DesktopSessionAgent;
 
 class DesktopProcess : public DesktopSessionAgent::Delegate,
                        public IPC::Listener,
                        public base::SupportsWeakPtr<DesktopProcess> {
  public:
-  DesktopProcess(
-      scoped_refptr<AutoThreadTaskRunner> caller_task_runner,
-      scoped_refptr<AutoThreadTaskRunner> input_task_runner,
-      const std::string& daemon_channel_name);
+  DesktopProcess(scoped_refptr<AutoThreadTaskRunner> caller_task_runner,
+                 scoped_refptr<AutoThreadTaskRunner> input_task_runner,
+                 scoped_refptr<AutoThreadTaskRunner> io_task_runner,
+                 mojo::ScopedMessagePipeHandle daemon_channel_handle);
   ~DesktopProcess() override;
 
   // DesktopSessionAgent::Delegate implementation.
   DesktopEnvironmentFactory& desktop_environment_factory() override;
   void OnNetworkProcessDisconnected() override;
 
   // IPC::Listener implementation.
   bool OnMessageReceived(const IPC::Message& message) override;
   void OnChannelConnected(int32_t peer_pid) override;
   void OnChannelError() override;
@@ skipping 16 matching lines @@
   void OnCrash(const std::string& function_name,
                const std::string& file_name,
                const int& line_number);
 
   // Task runner on which public methods of this class should be called.
   scoped_refptr<AutoThreadTaskRunner> caller_task_runner_;
 
   // Used to run input-related tasks.
   scoped_refptr<AutoThreadTaskRunner> input_task_runner_;
 
+  // Used for IPC.

[joedow, 2016/10/26 21:48:20]

nit: perhaps make this a bit more verbose: "Used for IPC communication with
Daemon process."

[Sam McNally, 2016/10/27 00:43:46]

Done.

+  scoped_refptr<AutoThreadTaskRunner> io_task_runner_;
+
   // Factory used to create integration components for use by |desktop_agent_|.
   std::unique_ptr<DesktopEnvironmentFactory> desktop_environment_factory_;
 
-  // Name of the IPC channel connecting the desktop process with the daemon
+  // Handle for the IPC channel connecting the desktop process with the daemon
   // process.
-  std::string daemon_channel_name_;
+  mojo::ScopedMessagePipeHandle daemon_channel_handle_;
 
   // IPC channel connecting the desktop process with the daemon process.
   std::unique_ptr<IPC::ChannelProxy> daemon_channel_;
 
   // Provides screen/audio capturing and input injection services for
   // the network process.
   scoped_refptr<DesktopSessionAgent> desktop_agent_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopProcess);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_DESKTOP_PROCESS_H_