resource_prefetch_predictor_factory.cc revision 90dce4d38c5ff5333bea97d859d4e484e27edf0c 
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#include "chrome/browser/predictors/resource_prefetch_predictor_factory.h"
6
7#include "chrome/browser/history/history_service_factory.h"
8#include "chrome/browser/predictors/predictor_database_factory.h"
9#include "chrome/browser/predictors/resource_prefetch_common.h"
10#include "chrome/browser/predictors/resource_prefetch_predictor.h"
11#include "chrome/browser/profiles/profile.h"
12#include "components/browser_context_keyed_service/browser_context_dependency_manager.h"
13
14namespace predictors {
15
16// static
17ResourcePrefetchPredictor* ResourcePrefetchPredictorFactory::GetForProfile(
18    Profile* profile) {
19  return static_cast<ResourcePrefetchPredictor*>(
20      GetInstance()->GetServiceForBrowserContext(profile, true));
21}
22
23// static
24ResourcePrefetchPredictorFactory*
25ResourcePrefetchPredictorFactory::GetInstance() {
26  return Singleton<ResourcePrefetchPredictorFactory>::get();
27}
28
29ResourcePrefetchPredictorFactory::ResourcePrefetchPredictorFactory()
30    : BrowserContextKeyedServiceFactory(
31        "ResourcePrefetchPredictor",
32        BrowserContextDependencyManager::GetInstance()) {
33  DependsOn(HistoryServiceFactory::GetInstance());
34  DependsOn(PredictorDatabaseFactory::GetInstance());
35}
36
37ResourcePrefetchPredictorFactory::~ResourcePrefetchPredictorFactory() {}
38
39BrowserContextKeyedService*
40    ResourcePrefetchPredictorFactory::BuildServiceInstanceFor(
41        content::BrowserContext* context) const {
42  Profile* profile = static_cast<Profile*>(context);
43
44  ResourcePrefetchPredictorConfig config;
45  if (!IsSpeculativeResourcePrefetchingEnabled(profile, &config))
46    return NULL;
47
48  return new ResourcePrefetchPredictor(config, profile);
49}
50
51}  // namespace predictors
52