Add content/browser/loader/ for resource loading related classes.

content/browser/renderer_host/async_resource_handler.h

-// Copyright (c) 2012 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_ASYNC_RESOURCE_HANDLER_H_
-#define CONTENT_BROWSER_RENDERER_HOST_ASYNC_RESOURCE_HANDLER_H_
-
-#include <string>
-
-#include "content/browser/renderer_host/resource_handler.h"
-#include "googleurl/src/gurl.h"
-
-namespace net {
-class URLRequest;
-}
-
-namespace content {
-class ResourceBuffer;
-class ResourceDispatcherHostImpl;
-class ResourceMessageFilter;
-class SharedIOBuffer;
-
-// Used to complete an asynchronous resource request in response to resource
-// load events from the resource dispatcher host.
-class AsyncResourceHandler : public ResourceHandler {
- public:
-  AsyncResourceHandler(ResourceMessageFilter* filter,
-                       int routing_id,
-                       net::URLRequest* request,
-                       ResourceDispatcherHostImpl* rdh);
-  virtual ~AsyncResourceHandler();
-
-  // IPC message handlers:
-  void OnFollowRedirect(bool has_new_first_party_for_cookies,
-                        const GURL& new_first_party_for_cookies);
-  void OnDataReceivedACK();
-
-  // ResourceHandler implementation:
-  virtual bool OnUploadProgress(int request_id,
-                                uint64 position,
-                                uint64 size) OVERRIDE;
-  virtual bool OnRequestRedirected(int request_id,
-                                   const GURL& new_url,
-                                   ResourceResponse* response,
-                                   bool* defer) OVERRIDE;
-  virtual bool OnResponseStarted(int request_id,
-                                 ResourceResponse* response,
-                                 bool* defer) OVERRIDE;
-  virtual bool OnWillStart(int request_id,
-                           const GURL& url,
-                           bool* defer) OVERRIDE;
-  virtual bool OnWillRead(int request_id,
-                          net::IOBuffer** buf,
-                          int* buf_size,
-                          int min_size) OVERRIDE;
-  virtual bool OnReadCompleted(int request_id,
-                               int bytes_read,
-                               bool* defer) OVERRIDE;
-  virtual bool OnResponseCompleted(int request_id,
-                                   const net::URLRequestStatus& status,
-                                   const std::string& security_info) OVERRIDE;
-  virtual void OnDataDownloaded(int request_id,
-                                int bytes_downloaded) OVERRIDE;
-
- private:
-  bool EnsureResourceBufferIsInitialized();
-  void ResumeIfDeferred();
-
-  scoped_refptr<ResourceBuffer> buffer_;
-  scoped_refptr<ResourceMessageFilter> filter_;
-  int routing_id_;
-  net::URLRequest* request_;
-  ResourceDispatcherHostImpl* rdh_;
-
-  // Number of messages we've sent to the renderer that we haven't gotten an
-  // ACK for. This allows us to avoid having too many messages in flight.
-  int pending_data_count_;
-
-  int allocation_size_;
-
-  bool did_defer_;
-
-  bool sent_received_response_msg_;
-  bool sent_first_data_msg_;
-
-  DISALLOW_COPY_AND_ASSIGN(AsyncResourceHandler);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_RENDERER_HOST_ASYNC_RESOURCE_HANDLER_H_