Mojo: Factor MessageInTransit secondary buffer stuff out into a separate class.

mojo/system/dispatcher.cc

 // 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.
 
 #include "mojo/system/dispatcher.h"
 
 #include "base/logging.h"
 #include "mojo/system/constants.h"
 #include "mojo/system/message_pipe_dispatcher.h"
 
@@ skipping 22 matching lines @@
 
   // We shouldn't race with things that close dispatchers, since closing can
   // only take place either under |handle_table_lock_| or when the handle is
   // marked as busy.
   DCHECK(!dispatcher->is_closed_);
 
   return DispatcherTransport(dispatcher);
 }
 
 // static
-void Dispatcher::MessageInTransitAccess::StartSerialize(
+void Dispatcher::TransportDataAccess::StartSerialize(
     Dispatcher* dispatcher,
     Channel* channel,
     size_t* max_size,
     size_t* max_platform_handles) {
   DCHECK(dispatcher);
   dispatcher->StartSerialize(channel, max_size, max_platform_handles);
 }
 
 // static
-bool Dispatcher::MessageInTransitAccess::EndSerializeAndClose(
+bool Dispatcher::TransportDataAccess::EndSerializeAndClose(
     Dispatcher* dispatcher,
     Channel* channel,
     void* destination,
     size_t* actual_size,
     std::vector<embedder::PlatformHandle>* platform_handles) {
   DCHECK(dispatcher);
   return dispatcher->EndSerializeAndClose(channel, destination, actual_size,
                                           platform_handles);
 }
 
 // static
-scoped_refptr<Dispatcher> Dispatcher::MessageInTransitAccess::Deserialize(
+scoped_refptr<Dispatcher> Dispatcher::TransportDataAccess::Deserialize(
     Channel* channel,
     int32_t type,
     const void* source,
     size_t size) {
   switch (static_cast<int32_t>(type)) {
     case kTypeUnknown:
       DVLOG(2) << "Deserializing invalid handle";
       return scoped_refptr<Dispatcher>();
     case kTypeMessagePipe:
       return scoped_refptr<Dispatcher>(
@@ skipping 368 matching lines @@
 // DispatcherTransport ---------------------------------------------------------
 
 void DispatcherTransport::End() {
   DCHECK(dispatcher_);
   dispatcher_->lock_.Release();
   dispatcher_ = NULL;
 }
 
 }  // namespace system
 }  // namespace mojo