Revert 262175 "* Replace "read" method with onReceiveXxx events."

trunk/src/chrome/browser/extensions/api/bluetooth/bluetooth_socket_event_dispatcher.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 CHROME_BROWSER_EXTENSIONS_API_BLUETOOTH_BLUETOOTH_SOCKET_EVENT_DISPATCHER_H_
-#define CHROME_BROWSER_EXTENSIONS_API_BLUETOOTH_BLUETOOTH_SOCKET_EVENT_DISPATCHER_H_
-
-#include "chrome/browser/extensions/api/bluetooth/bluetooth_api_socket.h"
-#include "extensions/browser/api/api_resource_manager.h"
-#include "extensions/browser/browser_context_keyed_api_factory.h"
-
-namespace content {
-class BrowserContext;
-}
-
-namespace extensions {
-struct Event;
-class BluetoothApiSocket;
-}
-
-namespace extensions {
-namespace api {
-
-// Dispatch events related to "bluetooth" sockets from callback on native socket
-// instances. There is one instance per browser context.
-class BluetoothSocketEventDispatcher
-    : public base::RefCountedThreadSafe<BluetoothSocketEventDispatcher> {
- public:
-  typedef ApiResourceManager<BluetoothApiSocket>::ApiResourceData SocketData;
-  explicit BluetoothSocketEventDispatcher(
-      content::BrowserContext* context,
-      scoped_refptr<SocketData> socket_data);
-
-  // Socket is active again, start receiving data from it.
-  void OnSocketResume(const std::string& extension_id, int socket_id);
-
- private:
-  friend class base::RefCountedThreadSafe<BluetoothSocketEventDispatcher>;
-  virtual ~BluetoothSocketEventDispatcher();
-
-  // base::Bind supports methods with up to 6 parameters. ReceiveParams is used
-  // as a workaround that limitation for invoking StartReceive.
-  struct ReceiveParams {
-    ReceiveParams();
-    ~ReceiveParams();
-
-    std::string extension_id;
-    int socket_id;
-  };
-
-  // Start a receive and register a callback.
-  void StartReceive(const ReceiveParams& params);
-
-  // Called when socket receive data.
-  void ReceiveCallback(const ReceiveParams& params,
-                       int bytes_read,
-                       scoped_refptr<net::IOBuffer> io_buffer);
-
-  // Called when socket receive data.
-  void ReceiveErrorCallback(const ReceiveParams& params,
-                            BluetoothApiSocket::ErrorReason error_reason,
-                            const std::string& error);
-
-  // Post an extension event from IO to UI thread
-  void PostEvent(const ReceiveParams& params, scoped_ptr<Event> event);
-
-  // Dispatch an extension event on to EventRouter instance on UI thread.
-  void DispatchEvent(const std::string& extension_id, scoped_ptr<Event> event);
-
-  // Usually FILE thread (except for unit testing).
-  content::BrowserThread::ID thread_id_;
-  void* browser_context_id_;
-  scoped_refptr<SocketData> socket_data_;
-
-  DISALLOW_COPY_AND_ASSIGN(BluetoothSocketEventDispatcher);
-};
-
-}  // namespace api
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_API_BLUETOOTH_BLUETOOTH_SOCKET_EVENT_DISPATCHER_H_