Add a Mojo EDK for Chrome that uses one OS pipe per message pipe.

mojo/edk/system/message_in_transit_queue.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 "third_party/mojo/src/mojo/edk/system/message_in_transit_queue.h"
+#include "mojo/edk/system/message_in_transit_queue.h"
 
 #include "base/logging.h"
 
 namespace mojo {
-namespace system {
+namespace edk {
 
 MessageInTransitQueue::MessageInTransitQueue() {
 }
 
 MessageInTransitQueue::~MessageInTransitQueue() {
   if (!IsEmpty()) {
     LOG(WARNING) << "Destroying nonempty message queue";
     Clear();
   }
 }
 
 void MessageInTransitQueue::Clear() {
   for (auto* message : queue_)
     delete message;
   queue_.clear();
 }
 
 void MessageInTransitQueue::Swap(MessageInTransitQueue* other) {
   queue_.swap(other->queue_);
 }
 
-}  // namespace system
+}  // namespace edk
 }  // namespace mojo