Restructure public side of network service.

mojo/services/public/cpp/network/web_socket_write_queue.h

-// 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.
-
-#ifndef MOJO_SERVICES_PUBLIC_CPP_NETWORK_WEB_SOCKET_WRITE_QUEUE_H_
-#define MOJO_SERVICES_PUBLIC_CPP_NETWORK_WEB_SOCKET_WRITE_QUEUE_H_
-
-#include "base/callback.h"
-#include "base/memory/scoped_vector.h"
-#include "mojo/common/handle_watcher.h"
-#include "mojo/public/cpp/system/data_pipe.h"
-
-namespace mojo {
-
-// This class simplifies the handling of multiple Writes on a DataPipe. It
-// writes each chunk all at once (or waits until the pipe is ready before
-// writing), calling the callback when finished. Callbacks are owned by this
-// class, and are guaranteed not to be called after this class is destroyed.
-// See also: WebSocketReadQueue
-class WebSocketWriteQueue {
- public:
-  WebSocketWriteQueue(DataPipeProducerHandle handle);
-  ~WebSocketWriteQueue();
-
-  void Write(const char* data,
-             uint32_t num_bytes,
-             base::Callback<void(const char*)> callback);
-
- private:
-  struct Operation;
-
-  MojoResult TryToWrite();
-  void Wait();
-  void OnHandleReady(MojoResult result);
-
-  DataPipeProducerHandle handle_;
-  common::HandleWatcher handle_watcher_;
-  ScopedVector<Operation> queue_;
-  bool is_waiting_;
-};
-
-}  // namespace mojo
-
-#endif  // MOJO_SERVICES_PUBLIC_CPP_NETWORK_WEB_SOCKET_WRITE_QUEUE_H_