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

ipc/mach_port_attachment_mac.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_MACH_PORT_ATTACHMENT_MAC_H_
 #define IPC_MACH_PORT_ATTACHMENT_MAC_H_
 
 #include <mach/mach.h>
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "base/process/process_handle.h"
 #include "ipc/brokerable_attachment.h"
 #include "ipc/ipc_export.h"
 #include "ipc/mach_port_mac.h"
 
 namespace IPC {
 namespace internal {
 
 // This class represents an OSX mach_port_t attached to a Chrome IPC message.
 class IPC_EXPORT MachPortAttachmentMac : public BrokerableAttachment {
  public:
   struct IPC_EXPORT WireFormat {
     // IPC translation requires that classes passed through IPC have a default
     // constructor.
     WireFormat() : mach_port(0), destination_process(0) {}
 
-    WireFormat(uint32_t mach_port,
-               const base::ProcessId& destination_process,
-               const AttachmentId& attachment_id)
-        : mach_port(mach_port),
-          destination_process(destination_process),
-          attachment_id(attachment_id) {}
+    WireFormat(uint32_t mach_port, const base::ProcessId& destination_process)
+        : mach_port(mach_port), destination_process(destination_process) {}
 
     // The mach port that is intended for duplication, or the mach port that has
     // been duplicated, depending on context.
     // The type is uint32_t instead of mach_port_t to ensure that the wire
     // format stays consistent.
     uint32_t mach_port;
     static_assert(sizeof(mach_port_t) <= sizeof(uint32_t),
                   "mach_port_t must be smaller than uint32_t");
 
     // The id of the destination process that the handle is duplicated into.
     base::ProcessId destination_process;
-
-    AttachmentId attachment_id;
   };
 
   // This constructor increments the ref count of |mach_port_| and takes
   // ownership of the result. Should only be called by the sender of a Chrome
   // IPC message.
   explicit MachPortAttachmentMac(mach_port_t mach_port);
 
   enum FromWire {
     FROM_WIRE,
   };
@@ skipping 26 matching lines @@
   // In the destination process, the attachment owns |mach_port_| until
   // ParamTraits<MachPortMac>::Read() is called, which takes ownership.
   bool owns_mach_port_;
   DISALLOW_COPY_AND_ASSIGN(MachPortAttachmentMac);
 };
 
 }  // namespace internal
 }  // namespace IPC
 
 #endif  // IPC_MACH_PORT_ATTACHMENT_MAC_H_