Use ChannelMojo between the remoting network and desktop processes.

remoting/host/desktop_session_agent.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_SESSION_AGENT_H_
 #define REMOTING_HOST_DESKTOP_SESSION_AGENT_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 
 #include "base/callback.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 "ipc/ipc_platform_file.h"
+#include "mojo/public/cpp/system/message_pipe.h"
 #include "remoting/host/client_session_control.h"
 #include "remoting/protocol/clipboard_stub.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_capturer.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
 #include "third_party/webrtc/modules/desktop_capture/mouse_cursor_monitor.h"
 
 namespace IPC {
 class ChannelProxy;
 class Message;
 }  // namespace IPC
@@ skipping 56 matching lines @@
                              const webrtc::DesktopVector& position) override;
 
   // Forwards a local clipboard event though the IPC channel to the network
   // process.
   void InjectClipboardEvent(const protocol::ClipboardEvent& event);
 
   // Forwards an audio packet though the IPC channel to the network process.
   void ProcessAudioPacket(std::unique_ptr<AudioPacket> packet);
 
   // Creates desktop integration components and a connected IPC channel to be
-  // used to access them. The client end of the channel is returned in
-  // the variable pointed by |desktop_pipe_out|.
-  bool Start(const base::WeakPtr<Delegate>& delegate,
-             IPC::PlatformFileForTransit* desktop_pipe_out);
+  // used to access them. The client end of the channel is returned.
+  mojo::ScopedMessagePipeHandle Start(const base::WeakPtr<Delegate>& delegate);
 
   // Stops the agent asynchronously.
   void Stop();
 
  protected:
   friend class base::RefCountedThreadSafe<DesktopSessionAgent>;
 
   ~DesktopSessionAgent() override;
 
   // ClientSessionControl interface.
@@ skipping 61 matching lines @@
 
   // Filter used to disable remote inputs during local input activity.
   std::unique_ptr<RemoteInputFilter> remote_input_filter_;
 
   // Used to apply client-requested changes in screen resolution.
   std::unique_ptr<ScreenControls> screen_controls_;
 
   // IPC channel connecting the desktop process with the network process.
   std::unique_ptr<IPC::ChannelProxy> network_channel_;
 
-  // The client end of the network-to-desktop pipe. It is kept alive until
-  // the network process connects to the pipe.
-  base::File desktop_pipe_;
-
   // True if the desktop session agent has been started.
   bool started_ = false;
 
   // Captures the screen.
   std::unique_ptr<webrtc::DesktopCapturer> video_capturer_;
 
   // Captures mouse shapes.
   std::unique_ptr<webrtc::MouseCursorMonitor> mouse_cursor_monitor_;
 
   // Keep reference to the last frame sent to make sure shared buffer is alive
   // before it's received.
   std::unique_ptr<webrtc::DesktopFrame> last_frame_;
 
   // Used to disable callbacks to |this|.
   base::WeakPtrFactory<DesktopSessionAgent> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopSessionAgent);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_DESKTOP_SESSION_AGENT_H_