ipc: Move methods into AttachmentBroker interface.

ipc/attachment_broker_privileged_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_ATTACHMENT_BROKER_PRIVILEGED_MAC_H_
 #define IPC_ATTACHMENT_BROKER_PRIVILEGED_MAC_H_
 
 #include <mach/mach.h>
 
 #include "base/gtest_prod_util.h"
@@ skipping 32 matching lines @@
 // the creation of R may not be necessary.
 //
 // For the rest of this file, and the corresponding implementation file, R will
 // be called the "intermediate Mach port" and M3 the "final Mach port".
 class IPC_EXPORT AttachmentBrokerPrivilegedMac
     : public AttachmentBrokerPrivileged {
  public:
   AttachmentBrokerPrivilegedMac();
   ~AttachmentBrokerPrivilegedMac() override;
 
-  // The port provider must live as long as the AttachmentBrokerPrivilegedMac. A
-  // port provider must be set before any attachment brokering occurs.
-  void SetPortProvider(base::PortProvider* port_provider);
-
   // IPC::AttachmentBroker overrides.
   bool SendAttachmentToProcess(BrokerableAttachment* attachment,
                                base::ProcessId destination_process) override;
 
   // IPC::Listener overrides.
   bool OnMessageReceived(const Message& message) override;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(AttachmentBrokerPrivilegedMacMultiProcessTest,
                            InsertRight);
@@ skipping 48 matching lines @@
   // passed to the consumer of the Chrome IPC message.
   // Makes an attachment, queues it, and notifies the observers.
   void RouteWireFormatToSelf(const MachPortWireFormat& wire_format);
 
   // |wire_format.destination_process| must be another process.
   // |wire_format.mach_port| must be the intermediate Mach port.
   // Ownership of |wire_format.mach_port| is implicitly passed to the process
   // that receives the Chrome IPC message.
   void RouteWireFormatToAnother(const MachPortWireFormat& wire_format);
 
-  base::PortProvider* port_provider_;
-
   DISALLOW_COPY_AND_ASSIGN(AttachmentBrokerPrivilegedMac);
 };
 
 }  // namespace IPC
 
 #endif  // IPC_ATTACHMENT_BROKER_PRIVILEGED_MAC_H_