EDK: Move ref counting classes to mojo/edk/util.

mojo/edk/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/edk/system/dispatcher.h"
 
 #include "base/logging.h"
 #include "mojo/edk/system/configuration.h"
 #include "mojo/edk/system/data_pipe_consumer_dispatcher.h"
 #include "mojo/edk/system/data_pipe_producer_dispatcher.h"
 #include "mojo/edk/system/message_pipe_dispatcher.h"
 #include "mojo/edk/system/platform_handle_dispatcher.h"
 #include "mojo/edk/system/shared_buffer_dispatcher.h"
 
+using mojo::util::RefPtr;
+
 namespace mojo {
 namespace system {
 
 namespace test {
 
 // TODO(vtl): Maybe this should be defined in a test-only file instead.
 DispatcherTransport DispatcherTryStartTransport(Dispatcher* dispatcher) {
   return Dispatcher::HandleTableAccess::TryStartTransport(dispatcher);
 }
 
@@ skipping 458 matching lines @@
 // DispatcherTransport ---------------------------------------------------------
 
 void DispatcherTransport::End() {
   DCHECK(dispatcher_);
   dispatcher_->mutex_.Unlock();
   dispatcher_ = nullptr;
 }
 
 }  // namespace system
 }  // namespace mojo