Reverting 27389.

ipc/ipc_sync_channel_unittest.cc

 // Copyright (c) 2006-2008 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.
 //
 // Unit test for SyncChannel.
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 48 matching lines @@
     ListenerThread()->message_loop()->PostTask(FROM_HERE, NewRunnableMethod(
         this, &Worker::OnListenerThreadShutdown1, &listener_done,
         &ipc_done));
     listener_done.Wait();
     ipc_done.Wait();
     ipc_thread_.Stop();
     listener_thread_.Stop();
   }
   void AddRef() { }
   void Release() { }
+  static bool ImplementsThreadSafeReferenceCounting() { return true; }
   bool Send(Message* msg) { return channel_->Send(msg); }
   bool SendWithTimeout(Message* msg, int timeout_ms) {
     return channel_->SendWithTimeout(msg, timeout_ms);
   }
   void WaitForChannelCreation() { channel_created_->Wait(); }
   void CloseChannel() {
     DCHECK(MessageLoop::current() == ListenerThread()->message_loop());
     channel_->Close();
   }
   void Start() {
@@ skipping 921 matching lines @@
 
 // Tests http://b/1474092 - that if after the done_event is set but before
 // OnObjectSignaled is called another message is sent out, then after its
 // reply comes back OnObjectSignaled will be called for the first message.
 TEST_F(IPCSyncChannelTest, DoneEventRace) {
   std::vector<Worker*> workers;
   workers.push_back(new DoneEventRaceServer());
   workers.push_back(new SimpleClient());
   RunTest(workers);
 }