Mojo: Move mojo/public/bindings/lib to mojo/public/cpp/bindings/lib.

mojo/public/bindings/lib/message_queue.h

-// 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.
-
-#ifndef MOJO_PUBLIC_BINDINGS_LIB_MESSAGE_QUEUE_H_
-#define MOJO_PUBLIC_BINDINGS_LIB_MESSAGE_QUEUE_H_
-
-#include <queue>
-
-#include "mojo/public/cpp/system/macros.h"
-
-namespace mojo {
-class Message;
-
-namespace internal {
-
-// A queue for Message objects.
-class MessageQueue {
- public:
-  MessageQueue();
-  ~MessageQueue();
-
-  bool IsEmpty() const;
-  Message* Peek();
-
-  // This method transfers ownership of |message->data| and |message->handles|
-  // to the message queue, resetting |message| in the process.
-  void Push(Message* message);
-
-  // Removes the next message from the queue, transferring ownership of its
-  // data and handles to the given |message|.
-  void Pop(Message* message);
-
-  // Removes the next message from the queue, discarding its data and handles.
-  // This is meant to be used in conjunction with |Peek|.
-  void Pop();
-
- private:
-  std::queue<Message*> queue_;
-
-  MOJO_DISALLOW_COPY_AND_ASSIGN(MessageQueue);
-};
-
-}  // namespace internal
-}  // namespace mojo
-
-#endif  // MOJO_PUBLIC_BINDINGS_LIB_MESSAGE_QUEUE_H_