EDK: Make TransportData preserve handle rights.

mojo/edk/system/message_in_transit.h

 // Copyright 2013 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 MOJO_EDK_SYSTEM_MESSAGE_IN_TRANSIT_H_
 #define MOJO_EDK_SYSTEM_MESSAGE_IN_TRANSIT_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <ostream>
 #include <vector>
 
 #include "mojo/edk/platform/aligned_alloc.h"
 #include "mojo/edk/system/channel_endpoint_id.h"
-#include "mojo/edk/system/dispatcher.h"
 #include "mojo/edk/system/handle.h"
 #include "mojo/edk/system/memory.h"
 #include "mojo/public/cpp/system/macros.h"
 
 namespace mojo {
 namespace system {
 
 class Channel;
 class TransportData;
 
@@ skipping 154 matching lines @@
   // satisified on a faith-based basis.
   static bool GetNextMessageSize(const void* buffer,
                                  size_t buffer_size,
                                  size_t* next_message_size);
 
   // Makes this message "own" the given set of handles. Each handle's dispatcher
   // must not be referenced from anywhere else (in particular, not from any
   // handle in the handle table), i.e., the dispatcher must have a reference
   // count of 1. This message must not already have handles.
   void SetHandles(std::unique_ptr<HandleVector> handles);
-  // TODO(vtl): Delete this.
-  void SetDispatchers(std::unique_ptr<DispatcherVector> dispatchers);
 
   // Sets the |TransportData| for this message. This should only be done when
   // there are no handles and no existing |TransportData|.
   void SetTransportData(std::unique_ptr<TransportData> transport_data);
 
   // Serializes any handles to the secondary buffer. This message must not
   // already have a secondary buffer (so this must only be called once). The
   // caller must ensure (e.g., by holding on to a reference) that |channel|
   // stays alive through the call.
   void SerializeAndCloseHandles(Channel* channel);
@@ skipping 95 matching lines @@
 // So logging macros and |DCHECK_EQ()|, etc. work.
 inline std::ostream& operator<<(std::ostream& out,
                                 MessageInTransit::Subtype subtype) {
   return out << static_cast<uint16_t>(subtype);
 }
 
 }  // namespace system
 }  // namespace mojo
 
 #endif  // MOJO_EDK_SYSTEM_MESSAGE_IN_TRANSIT_H_