profile_impl_io_data.cc revision a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7 
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/profiles/profile_impl_io_data.h"
6
7#include "base/bind.h"
8#include "base/command_line.h"
9#include "base/logging.h"
10#include "base/metrics/field_trial.h"
11#include "base/prefs/pref_member.h"
12#include "base/prefs/pref_service.h"
13#include "base/sequenced_task_runner.h"
14#include "base/stl_util.h"
15#include "base/strings/string_util.h"
16#include "base/threading/sequenced_worker_pool.h"
17#include "base/threading/worker_pool.h"
18#include "chrome/browser/chrome_notification_types.h"
19#include "chrome/browser/chromeos/profiles/profile_helper.h"
20#include "chrome/browser/custom_handlers/protocol_handler_registry.h"
21#include "chrome/browser/custom_handlers/protocol_handler_registry_factory.h"
22#include "chrome/browser/extensions/extension_protocols.h"
23#include "chrome/browser/io_thread.h"
24#include "chrome/browser/net/chrome_net_log.h"
25#include "chrome/browser/net/chrome_network_delegate.h"
26#include "chrome/browser/net/connect_interceptor.h"
27#include "chrome/browser/net/http_server_properties_manager.h"
28#include "chrome/browser/net/predictor.h"
29#include "chrome/browser/net/sqlite_server_bound_cert_store.h"
30#include "chrome/browser/profiles/profile.h"
31#include "chrome/common/chrome_constants.h"
32#include "chrome/common/chrome_switches.h"
33#include "chrome/common/pref_names.h"
34#include "chrome/common/url_constants.h"
35#include "content/public/browser/browser_thread.h"
36#include "content/public/browser/cookie_store_factory.h"
37#include "content/public/browser/notification_service.h"
38#include "content/public/browser/resource_context.h"
39#include "content/public/browser/storage_partition.h"
40#include "extensions/common/constants.h"
41#include "net/base/cache_type.h"
42#include "net/ftp/ftp_network_layer.h"
43#include "net/http/http_cache.h"
44#include "net/ssl/server_bound_cert_service.h"
45#include "net/url_request/protocol_intercept_job_factory.h"
46#include "net/url_request/url_request_job_factory_impl.h"
47#include "webkit/browser/quota/special_storage_policy.h"
48
49#if defined(OS_ANDROID) || defined(OS_IOS)
50#include "chrome/browser/net/spdyproxy/data_reduction_proxy_settings.h"
51#endif
52
53namespace {
54
55net::BackendType ChooseCacheBackendType() {
56  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
57  if (command_line.HasSwitch(switches::kUseSimpleCacheBackend)) {
58    const std::string opt_value =
59        command_line.GetSwitchValueASCII(switches::kUseSimpleCacheBackend);
60    if (LowerCaseEqualsASCII(opt_value, "off"))
61      return net::CACHE_BACKEND_BLOCKFILE;
62    if (opt_value == "" || LowerCaseEqualsASCII(opt_value, "on"))
63      return net::CACHE_BACKEND_SIMPLE;
64  }
65  const std::string experiment_name =
66      base::FieldTrialList::FindFullName("SimpleCacheTrial");
67#if defined(OS_ANDROID)
68  if (experiment_name == "ExperimentNo" ||
69      experiment_name == "ExperimentControl") {
70    return net::CACHE_BACKEND_BLOCKFILE;
71  }
72  return net::CACHE_BACKEND_SIMPLE;
73#else
74  if (experiment_name == "ExperimentYes" ||
75      experiment_name == "ExperimentYes2") {
76    return net::CACHE_BACKEND_SIMPLE;
77  }
78  return net::CACHE_BACKEND_BLOCKFILE;
79#endif
80}
81
82}  // namespace
83
84using content::BrowserThread;
85
86ProfileImplIOData::Handle::Handle(Profile* profile)
87    : io_data_(new ProfileImplIOData),
88      profile_(profile),
89      initialized_(false) {
90  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
91  DCHECK(profile);
92}
93
94ProfileImplIOData::Handle::~Handle() {
95  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
96  if (io_data_->predictor_ != NULL) {
97    // io_data_->predictor_ might be NULL if Init() was never called
98    // (i.e. we shut down before ProfileImpl::DoFinalInit() got called).
99    bool save_prefs = true;
100#if defined(OS_CHROMEOS)
101    save_prefs = !chromeos::ProfileHelper::IsSigninProfile(profile_);
102#endif
103    if (save_prefs) {
104      io_data_->predictor_->SaveStateForNextStartupAndTrim(
105          profile_->GetPrefs());
106    }
107    io_data_->predictor_->ShutdownOnUIThread();
108  }
109
110  if (io_data_->http_server_properties_manager_)
111    io_data_->http_server_properties_manager_->ShutdownOnUIThread();
112  io_data_->ShutdownOnUIThread();
113}
114
115void ProfileImplIOData::Handle::Init(
116      const base::FilePath& cookie_path,
117      const base::FilePath& server_bound_cert_path,
118      const base::FilePath& cache_path,
119      int cache_max_size,
120      const base::FilePath& media_cache_path,
121      int media_cache_max_size,
122      const base::FilePath& extensions_cookie_path,
123      const base::FilePath& profile_path,
124      const base::FilePath& infinite_cache_path,
125      chrome_browser_net::Predictor* predictor,
126      bool restore_old_session_cookies,
127      quota::SpecialStoragePolicy* special_storage_policy) {
128  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
129  DCHECK(!io_data_->lazy_params_);
130  DCHECK(predictor);
131
132  LazyParams* lazy_params = new LazyParams;
133
134  lazy_params->cookie_path = cookie_path;
135  lazy_params->server_bound_cert_path = server_bound_cert_path;
136  lazy_params->cache_path = cache_path;
137  lazy_params->cache_max_size = cache_max_size;
138  lazy_params->media_cache_path = media_cache_path;
139  lazy_params->media_cache_max_size = media_cache_max_size;
140  lazy_params->extensions_cookie_path = extensions_cookie_path;
141  lazy_params->infinite_cache_path = infinite_cache_path;
142  lazy_params->restore_old_session_cookies = restore_old_session_cookies;
143  lazy_params->special_storage_policy = special_storage_policy;
144
145  io_data_->lazy_params_.reset(lazy_params);
146
147  // Keep track of profile path and cache sizes separately so we can use them
148  // on demand when creating storage isolated URLRequestContextGetters.
149  io_data_->profile_path_ = profile_path;
150  io_data_->app_cache_max_size_ = cache_max_size;
151  io_data_->app_media_cache_max_size_ = media_cache_max_size;
152
153  io_data_->predictor_.reset(predictor);
154
155  io_data_->InitializeMetricsEnabledStateOnUIThread();
156}
157
158content::ResourceContext*
159    ProfileImplIOData::Handle::GetResourceContext() const {
160  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
161  LazyInitialize();
162  return GetResourceContextNoInit();
163}
164
165content::ResourceContext*
166ProfileImplIOData::Handle::GetResourceContextNoInit() const {
167  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
168  // Don't call LazyInitialize here, since the resource context is created at
169  // the beginning of initalization and is used by some members while they're
170  // being initialized (i.e. AppCacheService).
171  return io_data_->GetResourceContext();
172}
173
174scoped_refptr<ChromeURLRequestContextGetter>
175ProfileImplIOData::Handle::CreateMainRequestContextGetter(
176    content::ProtocolHandlerMap* protocol_handlers,
177    PrefService* local_state,
178    IOThread* io_thread) const {
179  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
180  LazyInitialize();
181  DCHECK(!main_request_context_getter_.get());
182  main_request_context_getter_ = ChromeURLRequestContextGetter::Create(
183      profile_, io_data_, protocol_handlers);
184
185  io_data_->predictor_
186      ->InitNetworkPredictor(profile_->GetPrefs(),
187                             local_state,
188                             io_thread,
189                             main_request_context_getter_.get());
190
191  content::NotificationService::current()->Notify(
192      chrome::NOTIFICATION_PROFILE_URL_REQUEST_CONTEXT_GETTER_INITIALIZED,
193      content::Source<Profile>(profile_),
194      content::NotificationService::NoDetails());
195  return main_request_context_getter_;
196}
197
198scoped_refptr<ChromeURLRequestContextGetter>
199ProfileImplIOData::Handle::GetMediaRequestContextGetter() const {
200  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
201  LazyInitialize();
202  if (!media_request_context_getter_.get()) {
203    media_request_context_getter_ =
204        ChromeURLRequestContextGetter::CreateForMedia(profile_, io_data_);
205  }
206  return media_request_context_getter_;
207}
208
209scoped_refptr<ChromeURLRequestContextGetter>
210ProfileImplIOData::Handle::GetExtensionsRequestContextGetter() const {
211  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
212  LazyInitialize();
213  if (!extensions_request_context_getter_.get()) {
214    extensions_request_context_getter_ =
215        ChromeURLRequestContextGetter::CreateForExtensions(profile_, io_data_);
216  }
217  return extensions_request_context_getter_;
218}
219
220scoped_refptr<ChromeURLRequestContextGetter>
221ProfileImplIOData::Handle::CreateIsolatedAppRequestContextGetter(
222    const base::FilePath& partition_path,
223    bool in_memory,
224    content::ProtocolHandlerMap* protocol_handlers) const {
225  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
226  // Check that the partition_path is not the same as the base profile path. We
227  // expect isolated partition, which will never go to the default profile path.
228  CHECK(partition_path != profile_->GetPath());
229  LazyInitialize();
230
231  // Keep a map of request context getters, one per requested storage partition.
232  StoragePartitionDescriptor descriptor(partition_path, in_memory);
233  ChromeURLRequestContextGetterMap::iterator iter =
234      app_request_context_getter_map_.find(descriptor);
235  if (iter != app_request_context_getter_map_.end())
236    return iter->second;
237
238  scoped_ptr<ProtocolHandlerRegistry::JobInterceptorFactory>
239      protocol_handler_interceptor(
240          ProtocolHandlerRegistryFactory::GetForProfile(profile_)->
241              CreateJobInterceptorFactory());
242  ChromeURLRequestContextGetter* context =
243      ChromeURLRequestContextGetter::CreateForIsolatedApp(
244          profile_, io_data_, descriptor,
245          protocol_handler_interceptor.Pass(),
246          protocol_handlers);
247  app_request_context_getter_map_[descriptor] = context;
248
249  return context;
250}
251
252scoped_refptr<ChromeURLRequestContextGetter>
253ProfileImplIOData::Handle::GetIsolatedMediaRequestContextGetter(
254    const base::FilePath& partition_path,
255    bool in_memory) const {
256  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
257  // We must have a non-default path, or this will act like the default media
258  // context.
259  CHECK(partition_path != profile_->GetPath());
260  LazyInitialize();
261
262  // Keep a map of request context getters, one per requested storage partition.
263  StoragePartitionDescriptor descriptor(partition_path, in_memory);
264  ChromeURLRequestContextGetterMap::iterator iter =
265      isolated_media_request_context_getter_map_.find(descriptor);
266  if (iter != isolated_media_request_context_getter_map_.end())
267    return iter->second;
268
269  // Get the app context as the starting point for the media context, so that
270  // it uses the app's cookie store.
271  ChromeURLRequestContextGetterMap::const_iterator app_iter =
272      app_request_context_getter_map_.find(descriptor);
273  DCHECK(app_iter != app_request_context_getter_map_.end());
274  ChromeURLRequestContextGetter* app_context = app_iter->second.get();
275  ChromeURLRequestContextGetter* context =
276      ChromeURLRequestContextGetter::CreateForIsolatedMedia(
277          profile_, app_context, io_data_, descriptor);
278  isolated_media_request_context_getter_map_[descriptor] = context;
279
280  return context;
281}
282
283void ProfileImplIOData::Handle::ClearNetworkingHistorySince(
284    base::Time time,
285    const base::Closure& completion) {
286  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
287  LazyInitialize();
288
289  BrowserThread::PostTask(
290      BrowserThread::IO, FROM_HERE,
291      base::Bind(
292          &ProfileImplIOData::ClearNetworkingHistorySinceOnIOThread,
293          base::Unretained(io_data_),
294          time,
295          completion));
296}
297
298void ProfileImplIOData::Handle::LazyInitialize() const {
299  if (initialized_)
300    return;
301
302  // Set initialized_ to true at the beginning in case any of the objects
303  // below try to get the ResourceContext pointer.
304  initialized_ = true;
305  PrefService* pref_service = profile_->GetPrefs();
306  io_data_->http_server_properties_manager_ =
307      new chrome_browser_net::HttpServerPropertiesManager(pref_service);
308  io_data_->set_http_server_properties(
309      scoped_ptr<net::HttpServerProperties>(
310          io_data_->http_server_properties_manager_));
311  io_data_->session_startup_pref()->Init(
312      prefs::kRestoreOnStartup, pref_service);
313  io_data_->session_startup_pref()->MoveToThread(
314      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO));
315#if defined(FULL_SAFE_BROWSING) || defined(MOBILE_SAFE_BROWSING)
316  io_data_->safe_browsing_enabled()->Init(prefs::kSafeBrowsingEnabled,
317      pref_service);
318  io_data_->safe_browsing_enabled()->MoveToThread(
319      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO));
320#endif
321  io_data_->InitializeOnUIThread(profile_);
322}
323
324ProfileImplIOData::LazyParams::LazyParams()
325    : cache_max_size(0),
326      media_cache_max_size(0),
327      restore_old_session_cookies(false) {}
328
329ProfileImplIOData::LazyParams::~LazyParams() {}
330
331ProfileImplIOData::ProfileImplIOData()
332    : ProfileIOData(false),
333      http_server_properties_manager_(NULL),
334      app_cache_max_size_(0),
335      app_media_cache_max_size_(0) {}
336ProfileImplIOData::~ProfileImplIOData() {
337  DestroyResourceContext();
338
339  if (media_request_context_)
340    media_request_context_->AssertNoURLRequests();
341}
342
343void ProfileImplIOData::InitializeInternal(
344    ProfileParams* profile_params,
345    content::ProtocolHandlerMap* protocol_handlers) const {
346  ChromeURLRequestContext* main_context = main_request_context();
347
348  IOThread* const io_thread = profile_params->io_thread;
349  IOThread::Globals* const io_thread_globals = io_thread->globals();
350  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
351  bool record_mode = command_line.HasSwitch(switches::kRecordMode) &&
352                     chrome::kRecordModeEnabled;
353  bool playback_mode = command_line.HasSwitch(switches::kPlaybackMode);
354
355  network_delegate()->set_predictor(predictor_.get());
356
357  // Initialize context members.
358
359  ApplyProfileParamsToContext(main_context);
360
361  if (http_server_properties_manager_)
362    http_server_properties_manager_->InitializeOnIOThread();
363
364  main_context->set_transport_security_state(transport_security_state());
365
366  main_context->set_net_log(io_thread->net_log());
367
368  main_context->set_network_delegate(network_delegate());
369
370  main_context->set_http_server_properties(http_server_properties());
371
372  main_context->set_host_resolver(
373      io_thread_globals->host_resolver.get());
374  main_context->set_cert_transparency_verifier(
375      io_thread_globals->cert_transparency_verifier.get());
376  main_context->set_http_auth_handler_factory(
377      io_thread_globals->http_auth_handler_factory.get());
378
379  main_context->set_fraudulent_certificate_reporter(
380      fraudulent_certificate_reporter());
381
382  main_context->set_throttler_manager(
383      io_thread_globals->throttler_manager.get());
384
385  main_context->set_proxy_service(proxy_service());
386
387  scoped_refptr<net::CookieStore> cookie_store = NULL;
388  net::ServerBoundCertService* server_bound_cert_service = NULL;
389  if (record_mode || playback_mode) {
390    // Don't use existing cookies and use an in-memory store.
391    cookie_store = new net::CookieMonster(
392        NULL, profile_params->cookie_monster_delegate.get());
393    // Don't use existing server-bound certs and use an in-memory store.
394    server_bound_cert_service = new net::ServerBoundCertService(
395        new net::DefaultServerBoundCertStore(NULL),
396        base::WorkerPool::GetTaskRunner(true));
397  }
398
399  // setup cookie store
400  if (!cookie_store.get()) {
401    DCHECK(!lazy_params_->cookie_path.empty());
402
403    cookie_store = content::CreatePersistentCookieStore(
404        lazy_params_->cookie_path,
405        lazy_params_->restore_old_session_cookies,
406        lazy_params_->special_storage_policy.get(),
407        profile_params->cookie_monster_delegate.get());
408    cookie_store->GetCookieMonster()->SetPersistSessionCookies(true);
409  }
410
411  main_context->set_cookie_store(cookie_store.get());
412
413  // Setup server bound cert service.
414  if (!server_bound_cert_service) {
415    DCHECK(!lazy_params_->server_bound_cert_path.empty());
416
417    scoped_refptr<SQLiteServerBoundCertStore> server_bound_cert_db =
418        new SQLiteServerBoundCertStore(
419            lazy_params_->server_bound_cert_path,
420            BrowserThread::GetBlockingPool()->GetSequencedTaskRunner(
421                BrowserThread::GetBlockingPool()->GetSequenceToken()),
422            lazy_params_->special_storage_policy.get());
423    server_bound_cert_service = new net::ServerBoundCertService(
424        new net::DefaultServerBoundCertStore(server_bound_cert_db.get()),
425        base::WorkerPool::GetTaskRunner(true));
426  }
427
428  set_server_bound_cert_service(server_bound_cert_service);
429  main_context->set_server_bound_cert_service(server_bound_cert_service);
430
431  net::HttpCache::DefaultBackend* main_backend =
432      new net::HttpCache::DefaultBackend(
433          net::DISK_CACHE,
434          ChooseCacheBackendType(),
435          lazy_params_->cache_path,
436          lazy_params_->cache_max_size,
437          BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE)
438              .get());
439  net::HttpNetworkSession::Params network_session_params;
440  PopulateNetworkSessionParams(profile_params, &network_session_params);
441  net::HttpCache* main_cache = new net::HttpCache(
442      network_session_params, main_backend);
443  main_cache->InitializeInfiniteCache(lazy_params_->infinite_cache_path);
444
445#if defined(OS_ANDROID) || defined(OS_IOS)
446  DataReductionProxySettings::InitDataReductionProxySession(
447      main_cache->GetSession());
448#endif
449
450  if (record_mode || playback_mode) {
451    main_cache->set_mode(
452        record_mode ? net::HttpCache::RECORD : net::HttpCache::PLAYBACK);
453  }
454
455  main_http_factory_.reset(main_cache);
456  main_context->set_http_transaction_factory(main_cache);
457
458#if !defined(DISABLE_FTP_SUPPORT)
459  ftp_factory_.reset(
460      new net::FtpNetworkLayer(io_thread_globals->host_resolver.get()));
461#endif  // !defined(DISABLE_FTP_SUPPORT)
462
463  scoped_ptr<net::URLRequestJobFactoryImpl> main_job_factory(
464      new net::URLRequestJobFactoryImpl());
465  InstallProtocolHandlers(main_job_factory.get(), protocol_handlers);
466  main_job_factory_ = SetUpJobFactoryDefaults(
467      main_job_factory.Pass(),
468      profile_params->protocol_handler_interceptor.Pass(),
469      network_delegate(),
470      ftp_factory_.get());
471  main_context->set_job_factory(main_job_factory_.get());
472
473#if defined(ENABLE_EXTENSIONS)
474  InitializeExtensionsRequestContext(profile_params);
475#endif
476
477  // Create a media request context based on the main context, but using a
478  // media cache.  It shares the same job factory as the main context.
479  StoragePartitionDescriptor details(profile_path_, false);
480  media_request_context_.reset(InitializeMediaRequestContext(main_context,
481                                                             details));
482
483  lazy_params_.reset();
484}
485
486void ProfileImplIOData::
487    InitializeExtensionsRequestContext(ProfileParams* profile_params) const {
488  ChromeURLRequestContext* extensions_context = extensions_request_context();
489  IOThread* const io_thread = profile_params->io_thread;
490  IOThread::Globals* const io_thread_globals = io_thread->globals();
491  ApplyProfileParamsToContext(extensions_context);
492
493  extensions_context->set_transport_security_state(transport_security_state());
494
495  extensions_context->set_net_log(io_thread->net_log());
496
497  extensions_context->set_throttler_manager(
498      io_thread_globals->throttler_manager.get());
499
500  net::CookieStore* extensions_cookie_store =
501      content::CreatePersistentCookieStore(
502          lazy_params_->extensions_cookie_path,
503          lazy_params_->restore_old_session_cookies,
504          NULL,
505          NULL);
506  // Enable cookies for devtools and extension URLs.
507  const char* schemes[] = {chrome::kChromeDevToolsScheme,
508                           extensions::kExtensionScheme};
509  extensions_cookie_store->GetCookieMonster()->SetCookieableSchemes(schemes, 2);
510  extensions_context->set_cookie_store(extensions_cookie_store);
511
512  scoped_ptr<net::URLRequestJobFactoryImpl> extensions_job_factory(
513      new net::URLRequestJobFactoryImpl());
514  // TODO(shalev): The extensions_job_factory has a NULL NetworkDelegate.
515  // Without a network_delegate, this protocol handler will never
516  // handle file: requests, but as a side effect it makes
517  // job_factory::IsHandledProtocol return true, which prevents attempts to
518  // handle the protocol externally. We pass NULL in to
519  // SetUpJobFactory() to get this effect.
520  extensions_job_factory_ = SetUpJobFactoryDefaults(
521      extensions_job_factory.Pass(),
522      scoped_ptr<ProtocolHandlerRegistry::JobInterceptorFactory>(),
523      NULL,
524      ftp_factory_.get());
525  extensions_context->set_job_factory(extensions_job_factory_.get());
526}
527
528ChromeURLRequestContext*
529ProfileImplIOData::InitializeAppRequestContext(
530    ChromeURLRequestContext* main_context,
531    const StoragePartitionDescriptor& partition_descriptor,
532    scoped_ptr<ProtocolHandlerRegistry::JobInterceptorFactory>
533        protocol_handler_interceptor,
534    content::ProtocolHandlerMap* protocol_handlers) const {
535  // Copy most state from the main context.
536  AppRequestContext* context = new AppRequestContext(load_time_stats());
537  context->CopyFrom(main_context);
538
539  base::FilePath cookie_path = partition_descriptor.path.Append(
540      chrome::kCookieFilename);
541  base::FilePath cache_path =
542      partition_descriptor.path.Append(chrome::kCacheDirname);
543
544  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
545  bool record_mode = command_line.HasSwitch(switches::kRecordMode) &&
546                     chrome::kRecordModeEnabled;
547  bool playback_mode = command_line.HasSwitch(switches::kPlaybackMode);
548
549  // Use a separate HTTP disk cache for isolated apps.
550  net::HttpCache::BackendFactory* app_backend = NULL;
551  if (partition_descriptor.in_memory) {
552    app_backend = net::HttpCache::DefaultBackend::InMemory(0);
553  } else {
554    app_backend = new net::HttpCache::DefaultBackend(
555        net::DISK_CACHE,
556        ChooseCacheBackendType(),
557        cache_path,
558        app_cache_max_size_,
559        BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE)
560            .get());
561  }
562  net::HttpNetworkSession* main_network_session =
563      main_http_factory_->GetSession();
564  net::HttpCache* app_http_cache =
565      new net::HttpCache(main_network_session, app_backend);
566
567  scoped_refptr<net::CookieStore> cookie_store = NULL;
568  if (partition_descriptor.in_memory) {
569    cookie_store = new net::CookieMonster(NULL, NULL);
570  } else if (record_mode || playback_mode) {
571    // Don't use existing cookies and use an in-memory store.
572    // TODO(creis): We should have a cookie delegate for notifying the cookie
573    // extensions API, but we need to update it to understand isolated apps
574    // first.
575    cookie_store = new net::CookieMonster(NULL, NULL);
576    app_http_cache->set_mode(
577        record_mode ? net::HttpCache::RECORD : net::HttpCache::PLAYBACK);
578  }
579
580  // Use an app-specific cookie store.
581  if (!cookie_store.get()) {
582    DCHECK(!cookie_path.empty());
583
584    // TODO(creis): We should have a cookie delegate for notifying the cookie
585    // extensions API, but we need to update it to understand isolated apps
586    // first.
587    cookie_store = content::CreatePersistentCookieStore(
588        cookie_path,
589        false,
590        NULL,
591        NULL);
592  }
593
594  // Transfer ownership of the cookies and cache to AppRequestContext.
595  context->SetCookieStore(cookie_store.get());
596  context->SetHttpTransactionFactory(
597      scoped_ptr<net::HttpTransactionFactory>(app_http_cache));
598
599  scoped_ptr<net::URLRequestJobFactoryImpl> job_factory(
600      new net::URLRequestJobFactoryImpl());
601  InstallProtocolHandlers(job_factory.get(), protocol_handlers);
602  scoped_ptr<net::URLRequestJobFactory> top_job_factory(
603      SetUpJobFactoryDefaults(
604          job_factory.Pass(), protocol_handler_interceptor.Pass(),
605          network_delegate(),
606          ftp_factory_.get()));
607  context->SetJobFactory(top_job_factory.Pass());
608
609  return context;
610}
611
612ChromeURLRequestContext*
613ProfileImplIOData::InitializeMediaRequestContext(
614    ChromeURLRequestContext* original_context,
615    const StoragePartitionDescriptor& partition_descriptor) const {
616  // Copy most state from the original context.
617  MediaRequestContext* context = new MediaRequestContext(load_time_stats());
618  context->CopyFrom(original_context);
619
620  // For in-memory context, return immediately after creating the new
621  // context before attaching a separate cache. It is important to return
622  // a new context rather than just reusing |original_context| because
623  // the caller expects to take ownership of the pointer.
624  if (partition_descriptor.in_memory)
625    return context;
626
627  using content::StoragePartition;
628  base::FilePath cache_path;
629  int cache_max_size = app_media_cache_max_size_;
630  if (partition_descriptor.path == profile_path_) {
631    // lazy_params_ is only valid for the default media context creation.
632    cache_path = lazy_params_->media_cache_path;
633    cache_max_size = lazy_params_->media_cache_max_size;
634  } else {
635    cache_path = partition_descriptor.path.Append(chrome::kMediaCacheDirname);
636  }
637
638  // Use a separate HTTP disk cache for isolated apps.
639  net::HttpCache::BackendFactory* media_backend =
640      new net::HttpCache::DefaultBackend(
641          net::MEDIA_CACHE,
642          ChooseCacheBackendType(),
643          cache_path,
644          cache_max_size,
645          BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE)
646              .get());
647  net::HttpNetworkSession* main_network_session =
648      main_http_factory_->GetSession();
649  scoped_ptr<net::HttpTransactionFactory> media_http_cache(
650      new net::HttpCache(main_network_session, media_backend));
651
652  // Transfer ownership of the cache to MediaRequestContext.
653  context->SetHttpTransactionFactory(media_http_cache.Pass());
654
655  // Note that we do not create a new URLRequestJobFactory because
656  // the media context should behave exactly like its parent context
657  // in all respects except for cache behavior on media subresources.
658  // The CopyFrom() step above means that our media context will use
659  // the same URLRequestJobFactory instance that our parent context does.
660
661  return context;
662}
663
664ChromeURLRequestContext*
665ProfileImplIOData::AcquireMediaRequestContext() const {
666  DCHECK(media_request_context_);
667  return media_request_context_.get();
668}
669
670ChromeURLRequestContext*
671ProfileImplIOData::AcquireIsolatedAppRequestContext(
672    ChromeURLRequestContext* main_context,
673    const StoragePartitionDescriptor& partition_descriptor,
674    scoped_ptr<ProtocolHandlerRegistry::JobInterceptorFactory>
675        protocol_handler_interceptor,
676    content::ProtocolHandlerMap* protocol_handlers) const {
677  // We create per-app contexts on demand, unlike the others above.
678  ChromeURLRequestContext* app_request_context =
679      InitializeAppRequestContext(main_context, partition_descriptor,
680                                  protocol_handler_interceptor.Pass(),
681                                  protocol_handlers);
682  DCHECK(app_request_context);
683  return app_request_context;
684}
685
686ChromeURLRequestContext*
687ProfileImplIOData::AcquireIsolatedMediaRequestContext(
688    ChromeURLRequestContext* app_context,
689    const StoragePartitionDescriptor& partition_descriptor) const {
690  // We create per-app media contexts on demand, unlike the others above.
691  ChromeURLRequestContext* media_request_context =
692      InitializeMediaRequestContext(app_context, partition_descriptor);
693  DCHECK(media_request_context);
694  return media_request_context;
695}
696
697chrome_browser_net::LoadTimeStats* ProfileImplIOData::GetLoadTimeStats(
698    IOThread::Globals* io_thread_globals) const {
699  return io_thread_globals->load_time_stats.get();
700}
701
702void ProfileImplIOData::ClearNetworkingHistorySinceOnIOThread(
703    base::Time time,
704    const base::Closure& completion) {
705  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
706  DCHECK(initialized());
707
708  DCHECK(transport_security_state());
709  // Completes synchronously.
710  transport_security_state()->DeleteAllDynamicDataSince(time);
711  DCHECK(http_server_properties_manager_);
712  http_server_properties_manager_->Clear(completion);
713}
714