Port WebSockets to Mojo IPC

content/browser/renderer_host/websocket_host.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 CONTENT_BROWSER_RENDERER_HOST_WEBSOCKET_HOST_H_
-#define CONTENT_BROWSER_RENDERER_HOST_WEBSOCKET_HOST_H_
-
-#include <stdint.h>
-
-#include <memory>
-#include <string>
-#include <vector>
-
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "base/time/time.h"
-#include "content/common/content_export.h"
-#include "content/common/websocket.h"
-
-class GURL;
-
-namespace url {
-class Origin;
-}  // namespace url
-
-namespace net {
-class WebSocketChannel;
-class URLRequestContext;
-}  // namespace net
-
-namespace IPC {
-class Message;
-}  // namespace IPC
-
-namespace content {
-
-class WebSocketBlobSender;
-class WebSocketDispatcherHost;
-
-// Host of net::WebSocketChannel. The lifetime of an instance of this class is
-// completely controlled by the WebSocketDispatcherHost object.
-class CONTENT_EXPORT WebSocketHost {
- public:
-  WebSocketHost(int routing_id,
-                WebSocketDispatcherHost* dispatcher,
-                net::URLRequestContext* url_request_context,
-                base::TimeDelta delay);
-  virtual ~WebSocketHost();
-
-  // The renderer process is going away.
-  // This function is virtual for testing.
-  virtual void GoAway();
-
-  // General message dispatch. WebSocketDispatcherHost::OnMessageReceived
-  // delegates to this method after looking up the |routing_id|.
-  virtual bool OnMessageReceived(const IPC::Message& message);
-
-  int routing_id() const { return routing_id_; }
-
-  bool handshake_succeeded() const { return handshake_succeeded_; }
-  void OnHandshakeSucceeded() { handshake_succeeded_ = true; }
-
- private:
-  class WebSocketEventHandler;
-
-  // Handlers for each message type, dispatched by OnMessageReceived(), as
-  // defined in content/common/websocket_messages.h
-
-  void OnAddChannelRequest(const GURL& socket_url,
-                           const std::vector<std::string>& requested_protocols,
-                           const url::Origin& origin,
-                           int render_frame_id);
-
-  void AddChannel(const GURL& socket_url,
-                  const std::vector<std::string>& requested_protocols,
-                  const url::Origin& origin,
-                  int render_frame_id);
-
-  void OnSendBlob(const std::string& uuid, uint64_t expected_size);
-
-  void OnSendFrame(bool fin,
-                   WebSocketMessageType type,
-                   const std::vector<char>& data);
-
-  void OnFlowControl(int64_t quota);
-
-  void OnDropChannel(bool was_clean, uint16_t code, const std::string& reason);
-
-  void BlobSendComplete(int result);
-
-  // non-NULL if and only if this object is currently in "blob sending mode".
-  std::unique_ptr<WebSocketBlobSender> blob_sender_;
-
-  // The channel we use to send events to the network.
-  std::unique_ptr<net::WebSocketChannel> channel_;
-
-  // The WebSocketHostDispatcher that created this object.
-  WebSocketDispatcherHost* const dispatcher_;
-
-  // The URL request context for the channel.
-  net::URLRequestContext* const url_request_context_;
-
-  // The ID used to route messages.
-  const int routing_id_;
-
-  // Delay used for per-renderer WebSocket throttling.
-  base::TimeDelta delay_;
-
-  // SendFlowControl() is delayed when OnFlowControl() is called before
-  // AddChannel() is called.
-  // Zero indicates there is no pending SendFlowControl().
-  int64_t pending_flow_control_quota_;
-
-  // handshake_succeeded_ is set and used by WebSocketDispatcherHost
-  // to manage counters for per-renderer WebSocket throttling.
-  bool handshake_succeeded_;
-
-  base::WeakPtrFactory<WebSocketHost> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(WebSocketHost);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_RENDERER_HOST_WEBSOCKET_HOST_H_