1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_NET_RESOURCE_PREFETCH_PREDICTOR_OBSERVER_H_ 6 #define CHROME_BROWSER_NET_RESOURCE_PREFETCH_PREDICTOR_OBSERVER_H_ 7 8 #include "base/basictypes.h" 9 #include "base/memory/weak_ptr.h" 10 #include "chrome/browser/predictors/resource_prefetch_predictor.h" 11 #include "webkit/common/resource_type.h" 12 13 namespace net { 14 class URLRequest; 15 } 16 17 class GURL; 18 19 namespace chrome_browser_net { 20 21 // Observes resource requests in the ResourceDispatcherHostDelegate and notifies 22 // the ResourcePrefetchPredictor about the ones it is interested in. 23 // - Has an instance per profile, and is owned by the corresponding 24 // ProfileIOData. 25 // - Needs to be constructed on UI thread. Rest of the functions can only be 26 // called on the IO thread. Can be destroyed on UI or IO thread. 27 class ResourcePrefetchPredictorObserver { 28 public: 29 explicit ResourcePrefetchPredictorObserver( 30 predictors::ResourcePrefetchPredictor* predictor); 31 ~ResourcePrefetchPredictorObserver(); 32 33 // Parts of the ResourceDispatcherHostDelegate that we want to observe. 34 void OnRequestStarted(net::URLRequest* request, 35 ResourceType::Type resource_type, 36 int child_id, 37 int route_id); 38 void OnRequestRedirected(const GURL& redirect_url, net::URLRequest* request); 39 void OnResponseStarted(net::URLRequest* request); 40 41 private: 42 // Owned by profile. 43 base::WeakPtr<predictors::ResourcePrefetchPredictor> predictor_; 44 45 DISALLOW_COPY_AND_ASSIGN(ResourcePrefetchPredictorObserver); 46 }; 47 48 } // namespace chrome_browser_net 49 50 #endif // CHROME_BROWSER_NET_RESOURCE_PREFETCH_PREDICTOR_OBSERVER_H_ 51
