Revert "Move mojo edk into mojo/edk"

mojo/edk/system/message_in_transit_queue.cc

Index: mojo/edk/system/message_in_transit_queue.cc
diff --git a/mojo/edk/system/message_in_transit_queue.cc b/mojo/edk/system/message_in_transit_queue.cc
deleted file mode 100644
index ab5195ef3cd43bc063ecbb7d402fb88467d00f82..0000000000000000000000000000000000000000
--- a/mojo/edk/system/message_in_transit_queue.cc
+++ /dev/null
@@ -1,32 +0,0 @@
-// 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/message_in_transit_queue.h"
-
-#include "base/logging.h"
-#include "base/stl_util.h"
-
-namespace mojo {
-namespace system {
-
-MessageInTransitQueue::MessageInTransitQueue() {
-}
-
-MessageInTransitQueue::~MessageInTransitQueue() {
-  if (!IsEmpty()) {
-    LOG(WARNING) << "Destroying nonempty message queue";
-    Clear();
-  }
-}
-
-void MessageInTransitQueue::Clear() {
-  STLDeleteElements(&queue_);
-}
-
-void MessageInTransitQueue::Swap(MessageInTransitQueue* other) {
-  queue_.swap(other->queue_);
-}
-
-}  // namespace system
-}  // namespace mojo