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

mojo/edk/system/handle_table.cc

 // Copyright 2014 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/handle_table.h"
 
 #include <limits>
 #include <utility>
 
 #include "base/logging.h"
 #include "mojo/edk/system/configuration.h"
 #include "mojo/edk/system/dispatcher.h"
 
+using mojo::util::RefPtr;
+
 namespace mojo {
 namespace system {
 
 HandleTable::Entry::Entry() : busy(false) {
 }
 
 HandleTable::Entry::Entry(RefPtr<Dispatcher>&& dispatcher)
     : dispatcher(std::move(dispatcher)), busy(false) {}
 
 HandleTable::Entry::~Entry() {
@@ skipping 209 matching lines @@
   for (uint32_t i = 0; i < num_handles; i++) {
     HandleToEntryMap::iterator it = handle_to_entry_map_.find(handles[i]);
     DCHECK(it != handle_to_entry_map_.end());
     DCHECK(it->second.busy);
     it->second.busy = false;
   }
 }
 
 }  // namespace system
 }  // namespace mojo