Add a ResourceScheduler to ResourceDispatcherHost.

content/browser/loader/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_LOADER_RESOURCE_LOADER_H_
 #define CONTENT_BROWSER_LOADER_RESOURCE_LOADER_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "content/browser/loader/resource_handler.h"
+#include "content/browser/loader/resource_scheduler.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 ResourceController,
+                       public ResourceScheduler::Loadable {
  public:
-  ResourceLoader(scoped_ptr<net::URLRequest> request,
-                 scoped_ptr<ResourceHandler> handler,
-                 ResourceLoaderDelegate* delegate);
+  CONTENT_EXPORT ResourceLoader(scoped_ptr<net::URLRequest> request,
+                                scoped_ptr<ResourceHandler> handler,
+                                ResourceLoaderDelegate* delegate);
   virtual ~ResourceLoader();
 
-  void StartRequest();
+  void ScheduleRequest(ResourceScheduler* scheduler);
   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(); }
@@ skipping 26 matching lines @@
                                 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;
 
+  // ResourceScheduler::Loadable implementation:
+  virtual void StartRequest() OVERRIDE;
+  virtual const net::URLRequest& url_request() 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_ptr<ResourceScheduler::LoadHandle> load_handle_;
 
   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_LOADER_RESOURCE_LOADER_H_