chrome/browser/profiles/profile_impl_io_data.cc

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