Delete IPC::ChannelPosix, IPC::ChannelWin and IPC::AttachmentBroker.

ipc/attachment_broker_privileged_win.h

-// Copyright 2015 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 IPC_ATTACHMENT_BROKER_PRIVILEGED_WIN_H_
-#define IPC_ATTACHMENT_BROKER_PRIVILEGED_WIN_H_
-
-#include <map>
-#include <vector>
-
-#include "base/macros.h"
-#include "ipc/attachment_broker_privileged.h"
-#include "ipc/handle_attachment_win.h"
-#include "ipc/ipc_export.h"
-
-namespace IPC {
-
-// This class is a concrete subclass of AttachmentBrokerPrivileged for the
-// Windows platform.
-class IPC_EXPORT AttachmentBrokerPrivilegedWin
-    : public AttachmentBrokerPrivileged {
- public:
-  AttachmentBrokerPrivilegedWin();
-  ~AttachmentBrokerPrivilegedWin() override;
-
-  // IPC::AttachmentBroker overrides.
-  bool SendAttachmentToProcess(
-      const scoped_refptr<IPC::BrokerableAttachment>& attachment,
-      base::ProcessId destination_process) override;
-  void ReceivedPeerPid(base::ProcessId peer_pid) override;
-
-  // IPC::Listener overrides.
-  bool OnMessageReceived(const Message& message) override;
-
- private:
-  using HandleWireFormat = internal::HandleAttachmentWin::WireFormat;
-  // IPC message handlers.
-  void OnDuplicateWinHandle(const Message& message);
-
-  // Duplicates |wire_Format| from |source_process| into its destination
-  // process. Closes the original HANDLE.
-  HandleWireFormat DuplicateWinHandle(const HandleWireFormat& wire_format,
-                                      base::ProcessId source_process);
-
-  // Copies an existing |wire_format|, but substitutes in a different handle.
-  HandleWireFormat CopyWireFormat(const HandleWireFormat& wire_format,
-                                  int handle);
-
-  // If the HANDLE's destination is this process, queue it and notify the
-  // observers. Otherwise, send it in an IPC to its destination.
-  // If the destination process cannot be found, |store_on_failure| indicates
-  // whether the |wire_format| should be stored, or an error should be emitted.
-  void RouteDuplicatedHandle(const HandleWireFormat& wire_format,
-                             bool store_on_failure);
-
-  // Wire formats that cannot be immediately sent to the destination process
-  // because the connection has not been established. If, for some reason, the
-  // connection is never established, then the assumption is that the
-  // destination process died. The resource itself will be cleaned up by the OS,
-  // but the data structure HandleWireFormat will leak. If, at a later point in
-  // time, a new process is created with the same process id, the WireFormats
-  // will be passed to the new process. There is no security problem, since the
-  // resource itself is not being sent. Furthermore, it is unlikely to affect
-  // the functionality of the new process, since AttachmentBroker ids are large,
-  // unguessable nonces.
-  using WireFormats = std::vector<HandleWireFormat>;
-  std::map<base::ProcessId, WireFormats> stored_wire_formats_;
-
-  DISALLOW_COPY_AND_ASSIGN(AttachmentBrokerPrivilegedWin);
-};
-
-}  // namespace IPC
-
-#endif  // IPC_ATTACHMENT_BROKER_PRIVILEGED_WIN_H_