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

content/browser/renderer_host/resource_loader.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_RESOURCE_LOADER_H_
-#define CONTENT_BROWSER_RENDERER_HOST_RESOURCE_LOADER_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "content/browser/renderer_host/resource_handler.h"
-#include "content/browser/ssl/ssl_error_handler.h"
-#include "content/public/browser/resource_controller.h"
-#include "net/url_request/url_request.h"
-
-namespace content {
-class ResourceDispatcherHostLoginDelegate;
-class ResourceLoaderDelegate;
-class ResourceRequestInfoImpl;
-class SSLClientAuthHandler;
-
-// This class is responsible for driving the URLRequest (i.e., calling Start,
-// Read, and servicing events).  It has a ResourceHandler, which is typically a
-// chain of ResourceHandlers, and is the ResourceController for its handler.
-class ResourceLoader : public net::URLRequest::Delegate,
-                       public SSLErrorHandler::Delegate,
-                       public ResourceController {
- public:
-  ResourceLoader(scoped_ptr<net::URLRequest> request,
-                 scoped_ptr<ResourceHandler> handler,
-                 ResourceLoaderDelegate* delegate);
-  virtual ~ResourceLoader();
-
-  void StartRequest();
-  void CancelRequest(bool from_renderer);
-
-  void ReportUploadProgress();
-
-  bool is_transferring() const { return is_transferring_; }
-  void MarkAsTransferring();
-  void WillCompleteTransfer();
-  void CompleteTransfer(scoped_ptr<ResourceHandler> new_handler);
-
-  net::URLRequest* request() { return request_.get(); }
-  ResourceRequestInfoImpl* GetRequestInfo();
-
-  void ClearLoginDelegate();
-  void ClearSSLClientAuthHandler();
-
-  // IPC message handlers:
-  void OnUploadProgressACK();
-
- private:
-  // net::URLRequest::Delegate implementation:
-  virtual void OnReceivedRedirect(net::URLRequest* request,
-                                  const GURL& new_url,
-                                  bool* defer) OVERRIDE;
-  virtual void OnAuthRequired(net::URLRequest* request,
-                              net::AuthChallengeInfo* info) OVERRIDE;
-  virtual void OnCertificateRequested(net::URLRequest* request,
-                                      net::SSLCertRequestInfo* info) OVERRIDE;
-  virtual void OnSSLCertificateError(net::URLRequest* request,
-                                     const net::SSLInfo& info,
-                                     bool fatal) OVERRIDE;
-  virtual void OnResponseStarted(net::URLRequest* request) OVERRIDE;
-  virtual void OnReadCompleted(net::URLRequest* request,
-                               int bytes_read) OVERRIDE;
-
-  // SSLErrorHandler::Delegate implementation:
-  virtual void CancelSSLRequest(const GlobalRequestID& id,
-                                int error,
-                                const net::SSLInfo* ssl_info) OVERRIDE;
-  virtual void ContinueSSLRequest(const GlobalRequestID& id) OVERRIDE;
-
-  // ResourceController implementation:
-  virtual void Resume() OVERRIDE;
-  virtual void Cancel() OVERRIDE;
-  virtual void CancelAndIgnore() OVERRIDE;
-  virtual void CancelWithError(int error_code) OVERRIDE;
-
-  void StartRequestInternal();
-  void CancelRequestInternal(int error, bool from_renderer);
-  void CompleteResponseStarted();
-  void StartReading(bool is_continuation);
-  void ResumeReading();
-  void ReadMore(int* bytes_read);
-  void CompleteRead(int bytes_read);
-  void ResponseCompleted();
-  void CallDidFinishLoading();
-
-  bool is_deferred() const { return deferred_stage_ != DEFERRED_NONE; }
-
-  enum DeferredStage {
-    DEFERRED_NONE,
-    DEFERRED_START,
-    DEFERRED_REDIRECT,
-    DEFERRED_READ,
-    DEFERRED_FINISH
-  };
-  DeferredStage deferred_stage_;
-
-  scoped_ptr<net::URLRequest> request_;
-  scoped_ptr<ResourceHandler> handler_;
-  ResourceLoaderDelegate* delegate_;
-
-  scoped_refptr<ResourceDispatcherHostLoginDelegate> login_delegate_;
-  scoped_refptr<SSLClientAuthHandler> ssl_client_auth_handler_;
-
-  uint64 last_upload_position_;
-  bool waiting_for_upload_progress_ack_;
-  base::TimeTicks last_upload_ticks_;
-
-  // Indicates that we are in a state of being transferred to a new downstream
-  // consumer.  We are waiting for a notification to complete the transfer, at
-  // which point we'll receive a new ResourceHandler.
-  bool is_transferring_;
-
-  base::WeakPtrFactory<ResourceLoader> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(ResourceLoader);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_RENDERER_HOST_RESOURCE_LOADER_H_