EDK: Move mutex.*, cond_var.*, and thread_annotations.h to //mojo/edk/util.

mojo/edk/system/message_pipe.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/message_pipe.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/logging.h"
 #include "mojo/edk/system/channel.h"
 #include "mojo/edk/system/channel_endpoint.h"
 #include "mojo/edk/system/channel_endpoint_id.h"
 #include "mojo/edk/system/incoming_endpoint.h"
 #include "mojo/edk/system/local_message_pipe_endpoint.h"
 #include "mojo/edk/system/message_in_transit.h"
 #include "mojo/edk/system/message_pipe_dispatcher.h"
 #include "mojo/edk/system/message_pipe_endpoint.h"
 #include "mojo/edk/system/proxy_message_pipe_endpoint.h"
 #include "mojo/edk/util/make_unique.h"
 
 using mojo::util::MakeRefCounted;
+using mojo::util::MutexLocker;
 using mojo::util::RefPtr;
 
 namespace mojo {
 namespace system {
 
 // static
 RefPtr<MessagePipe> MessagePipe::CreateLocalLocal()
     MOJO_NO_THREAD_SAFETY_ANALYSIS {
   RefPtr<MessagePipe> message_pipe = AdoptRef(new MessagePipe());
   message_pipe->endpoints_[0].reset(new LocalMessagePipeEndpoint());
@@ skipping 352 matching lines @@
       LOG(WARNING) << "Enqueueing null dispatcher";
       dispatchers->push_back(nullptr);
     }
   }
   message->SetDispatchers(std::move(dispatchers));
   return MOJO_RESULT_OK;
 }
 
 }  // namespace system
 }  // namespace mojo