chrome/browser/chromeos/drive/drive_integration_service.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/chromeos/drive/drive_integration_service.h"
   6
   7 #include "base/bind.h"
   8 #include "base/files/file_util.h"
   9 #include "base/prefs/pref_change_registrar.h"
  10 #include "base/prefs/pref_service.h"
  11 #include "base/strings/stringprintf.h"
  12 #include "base/threading/sequenced_worker_pool.h"
  13 #include "chrome/browser/browser_process.h"
  14 #include "chrome/browser/chrome_notification_types.h"
  15 #include "chrome/browser/chromeos/drive/debug_info_collector.h"
  16 #include "chrome/browser/chromeos/drive/download_handler.h"
  17 #include "chrome/browser/chromeos/drive/file_system_util.h"
  18 #include "chrome/browser/chromeos/file_manager/path_util.h"
  19 #include "chrome/browser/chromeos/profiles/profile_util.h"
  20 #include "chrome/browser/download/download_prefs.h"
  21 #include "chrome/browser/download/download_service.h"
  22 #include "chrome/browser/download/download_service_factory.h"
  23 #include "chrome/browser/drive/drive_notification_manager_factory.h"
  24 #include "chrome/browser/profiles/incognito_helpers.h"
  25 #include "chrome/browser/profiles/profile.h"
  26 #include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
  27 #include "chrome/browser/signin/signin_manager_factory.h"
  28 #include "chrome/common/pref_names.h"
  29 #include "chrome/grit/generated_resources.h"
  30 #include "components/drive/drive_api_util.h"
  31 #include "components/drive/drive_app_registry.h"
  32 #include "components/drive/drive_notification_manager.h"
  33 #include "components/drive/drive_pref_names.h"
  34 #include "components/drive/event_logger.h"
  35 #include "components/drive/file_cache.h"
  36 #include "components/drive/file_system.h"
  37 #include "components/drive/job_scheduler.h"
  38 #include "components/drive/resource_metadata.h"
  39 #include "components/drive/resource_metadata_storage.h"
  40 #include "components/drive/service/drive_api_service.h"
  41 #include "components/keyed_service/content/browser_context_dependency_manager.h"
  42 #include "components/signin/core/browser/profile_oauth2_token_service.h"
  43 #include "components/signin/core/browser/signin_manager.h"
  44 #include "components/version_info/version_info.h"
  45 #include "content/public/browser/browser_context.h"
  46 #include "content/public/browser/browser_thread.h"
  47 #include "content/public/browser/notification_service.h"
  48 #include "content/public/common/user_agent.h"
  49 #include "google_apis/drive/auth_service.h"
  50 #include "storage/browser/fileapi/external_mount_points.h"
  51 #include "ui/base/l10n/l10n_util.h"
  52
  53 using content::BrowserContext;
  54 using content::BrowserThread;
  55
  56 namespace drive {
  57 namespace {
  58
  59 // Name of the directory used to store metadata.
  60 const base::FilePath::CharType kMetadataDirectory[] = FILE_PATH_LITERAL("meta");
  61
  62 // Name of the directory used to store cached files.
  63 const base::FilePath::CharType kCacheFileDirectory[] =
  64     FILE_PATH_LITERAL("files");
  65
  66 // Name of the directory used to store temporary files.
  67 const base::FilePath::CharType kTemporaryFileDirectory[] =
  68     FILE_PATH_LITERAL("tmp");
  69
  70 // Returns a user agent string used for communicating with the Drive backend,
  71 // both WAPI and Drive API.  The user agent looks like:
  72 //
  73 // chromedrive-<VERSION> chrome-cc/none (<OS_CPU_INFO>)
  74 // chromedrive-24.0.1274.0 chrome-cc/none (CrOS x86_64 0.4.0)
  75 //
  76 // TODO(satorux): Move this function to somewhere else: crbug.com/151605
  77 std::string GetDriveUserAgent() {
  78   const char kDriveClientName[] = "chromedrive";
  79
  80   const std::string version = version_info::GetVersionNumber();
  81
  82   // This part is <client_name>/<version>.
  83   const char kLibraryInfo[] = "chrome-cc/none";
  84
  85   const std::string os_cpu_info = content::BuildOSCpuInfo();
  86
  87   // Add "gzip" to receive compressed data from the server.
  88   // (see https://developers.google.com/drive/performance)
  89   return base::StringPrintf("%s-%s %s (%s) (gzip)",
  90                             kDriveClientName,
  91                             version.c_str(),
  92                             kLibraryInfo,
  93                             os_cpu_info.c_str());
  94 }
  95
  96 // Initializes FileCache and ResourceMetadata.
  97 // Must be run on the same task runner used by |cache| and |resource_metadata|.
  98 FileError InitializeMetadata(
  99     const base::FilePath& cache_root_directory,
 100     internal::ResourceMetadataStorage* metadata_storage,
 101     internal::FileCache* cache,
 102     internal::ResourceMetadata* resource_metadata,
 103     const base::FilePath& downloads_directory) {
 104   // Files in temporary directory need not persist across sessions. Clean up
 105   // the directory content while initialization.
 106   base::DeleteFile(cache_root_directory.Append(kTemporaryFileDirectory),
 107                    true);  // recursive
 108   if (!base::CreateDirectory(cache_root_directory.Append(
 109           kMetadataDirectory)) ||
 110       !base::CreateDirectory(cache_root_directory.Append(
 111           kCacheFileDirectory)) ||
 112       !base::CreateDirectory(cache_root_directory.Append(
 113           kTemporaryFileDirectory))) {
 114     LOG(WARNING) << "Failed to create directories.";
 115     return FILE_ERROR_FAILED;
 116   }
 117
 118   // Change permissions of cache file directory to u+rwx,og+x (711) in order to
 119   // allow archive files in that directory to be mounted by cros-disks.
 120   base::SetPosixFilePermissions(
 121       cache_root_directory.Append(kCacheFileDirectory),
 122       base::FILE_PERMISSION_USER_MASK |
 123       base::FILE_PERMISSION_EXECUTE_BY_GROUP |
 124       base::FILE_PERMISSION_EXECUTE_BY_OTHERS);
 125
 126   internal::ResourceMetadataStorage::UpgradeOldDB(
 127       metadata_storage->directory_path());
 128
 129   if (!metadata_storage->Initialize()) {
 130     LOG(WARNING) << "Failed to initialize the metadata storage.";
 131     return FILE_ERROR_FAILED;
 132   }
 133
 134   if (!cache->Initialize()) {
 135     LOG(WARNING) << "Failed to initialize the cache.";
 136     return FILE_ERROR_FAILED;
 137   }
 138
 139   if (metadata_storage->cache_file_scan_is_needed()) {
 140     // Generate unique directory name.
 141     const std::string& dest_directory_name = l10n_util::GetStringUTF8(
 142         IDS_FILE_BROWSER_RECOVERED_FILES_FROM_GOOGLE_DRIVE_DIRECTORY_NAME);
 143     base::FilePath dest_directory = downloads_directory.Append(
 144         base::FilePath::FromUTF8Unsafe(dest_directory_name));
 145     for (int uniquifier = 1; base::PathExists(dest_directory); ++uniquifier) {
 146       dest_directory = downloads_directory.Append(
 147           base::FilePath::FromUTF8Unsafe(dest_directory_name))
 148           .InsertBeforeExtensionASCII(base::StringPrintf(" (%d)", uniquifier));
 149     }
 150
 151     internal::ResourceMetadataStorage::RecoveredCacheInfoMap
 152         recovered_cache_info;
 153     metadata_storage->RecoverCacheInfoFromTrashedResourceMap(
 154         &recovered_cache_info);
 155
 156     LOG_IF(WARNING, !recovered_cache_info.empty())
 157         << "DB could not be opened for some reasons. "
 158         << "Recovering cache files to " << dest_directory.value();
 159     if (!cache->RecoverFilesFromCacheDirectory(dest_directory,
 160                                                recovered_cache_info)) {
 161       LOG(WARNING) << "Failed to recover cache files.";
 162       return FILE_ERROR_FAILED;
 163     }
 164   }
 165
 166   FileError error = resource_metadata->Initialize();
 167   LOG_IF(WARNING, error != FILE_ERROR_OK)
 168       << "Failed to initialize resource metadata. " << FileErrorToString(error);
 169   return error;
 170 }
 171
 172 }  // namespace
 173
 174 // Observes drive disable Preference's change.
 175 class DriveIntegrationService::PreferenceWatcher {
 176  public:
 177   explicit PreferenceWatcher(PrefService* pref_service)
 178       : pref_service_(pref_service),
 179         integration_service_(NULL),
 180         weak_ptr_factory_(this) {
 181     DCHECK(pref_service);
 182     pref_change_registrar_.Init(pref_service);
 183     pref_change_registrar_.Add(
 184         prefs::kDisableDrive,
 185         base::Bind(&PreferenceWatcher::OnPreferenceChanged,
 186                    weak_ptr_factory_.GetWeakPtr()));
 187   }
 188
 189   void set_integration_service(DriveIntegrationService* integration_service) {
 190     integration_service_ = integration_service;
 191   }
 192
 193  private:
 194   void OnPreferenceChanged() {
 195     DCHECK(integration_service_);
 196     integration_service_->SetEnabled(
 197         !pref_service_->GetBoolean(prefs::kDisableDrive));
 198   }
 199
 200   PrefService* pref_service_;
 201   PrefChangeRegistrar pref_change_registrar_;
 202   DriveIntegrationService* integration_service_;
 203
 204   base::WeakPtrFactory<PreferenceWatcher> weak_ptr_factory_;
 205   DISALLOW_COPY_AND_ASSIGN(PreferenceWatcher);
 206 };
 207
 208 DriveIntegrationService::DriveIntegrationService(
 209     Profile* profile,
 210     PreferenceWatcher* preference_watcher,
 211     DriveServiceInterface* test_drive_service,
 212     const std::string& test_mount_point_name,
 213     const base::FilePath& test_cache_root,
 214     FileSystemInterface* test_file_system)
 215     : profile_(profile),
 216       state_(NOT_INITIALIZED),
 217       enabled_(false),
 218       mount_point_name_(test_mount_point_name),
 219       cache_root_directory_(!test_cache_root.empty() ?
 220                             test_cache_root : util::GetCacheRootPath(profile)),
 221       weak_ptr_factory_(this) {
 222   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 223   DCHECK(profile && !profile->IsOffTheRecord());
 224
 225   logger_.reset(new EventLogger);
 226   base::SequencedWorkerPool* blocking_pool = BrowserThread::GetBlockingPool();
 227   blocking_task_runner_ = blocking_pool->GetSequencedTaskRunner(
 228       blocking_pool->GetSequenceToken());
 229
 230   ProfileOAuth2TokenService* oauth_service =
 231       ProfileOAuth2TokenServiceFactory::GetForProfile(profile);
 232
 233   if (test_drive_service) {
 234     drive_service_.reset(test_drive_service);
 235   } else {
 236     drive_service_.reset(new DriveAPIService(
 237         oauth_service,
 238         g_browser_process->system_request_context(),
 239         blocking_task_runner_.get(),
 240         GURL(google_apis::DriveApiUrlGenerator::kBaseUrlForProduction),
 241         GURL(google_apis::DriveApiUrlGenerator::kBaseDownloadUrlForProduction),
 242         GetDriveUserAgent()));
 243   }
 244   scheduler_.reset(new JobScheduler(
 245       profile_->GetPrefs(),
 246       logger_.get(),
 247       drive_service_.get(),
 248       blocking_task_runner_.get()));
 249   metadata_storage_.reset(new internal::ResourceMetadataStorage(
 250       cache_root_directory_.Append(kMetadataDirectory),
 251       blocking_task_runner_.get()));
 252   cache_.reset(new internal::FileCache(
 253       metadata_storage_.get(),
 254       cache_root_directory_.Append(kCacheFileDirectory),
 255       blocking_task_runner_.get(),
 256       NULL /* free_disk_space_getter */));
 257   drive_app_registry_.reset(new DriveAppRegistry(drive_service_.get()));
 258
 259   resource_metadata_.reset(new internal::ResourceMetadata(
 260       metadata_storage_.get(), cache_.get(), blocking_task_runner_));
 261
 262   file_task_runner_ =
 263       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE);
 264   file_system_.reset(
 265       test_file_system
 266           ? test_file_system
 267           : new FileSystem(
 268                 profile_->GetPrefs(), logger_.get(), cache_.get(),
 269                 scheduler_.get(), resource_metadata_.get(),
 270                 blocking_task_runner_.get(), file_task_runner_.get(),
 271                 cache_root_directory_.Append(kTemporaryFileDirectory)));
 272   download_handler_.reset(new DownloadHandler(file_system()));
 273   debug_info_collector_.reset(new DebugInfoCollector(
 274       resource_metadata_.get(), file_system(), blocking_task_runner_.get()));
 275
 276   if (preference_watcher) {
 277     preference_watcher_.reset(preference_watcher);
 278     preference_watcher->set_integration_service(this);
 279   }
 280
 281   SetEnabled(drive::util::IsDriveEnabledForProfile(profile));
 282 }
 283
 284 DriveIntegrationService::~DriveIntegrationService() {
 285   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 286 }
 287
 288 void DriveIntegrationService::Shutdown() {
 289   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 290
 291   weak_ptr_factory_.InvalidateWeakPtrs();
 292
 293   DriveNotificationManager* drive_notification_manager =
 294       DriveNotificationManagerFactory::FindForBrowserContext(profile_);
 295   if (drive_notification_manager)
 296     drive_notification_manager->RemoveObserver(this);
 297
 298   RemoveDriveMountPoint();
 299   debug_info_collector_.reset();
 300   download_handler_.reset();
 301   file_system_.reset();
 302   drive_app_registry_.reset();
 303   scheduler_.reset();
 304   drive_service_.reset();
 305 }
 306
 307 void DriveIntegrationService::SetEnabled(bool enabled) {
 308   // If Drive is being disabled, ensure the download destination preference to
 309   // be out of Drive. Do this before "Do nothing if not changed." because we
 310   // want to run the check for the first SetEnabled() called in the constructor,
 311   // which may be a change from false to false.
 312   if (!enabled)
 313     AvoidDriveAsDownloadDirecotryPreference();
 314
 315   // Do nothing if not changed.
 316   if (enabled_ == enabled)
 317     return;
 318
 319   if (enabled) {
 320     enabled_ = true;
 321     switch (state_) {
 322       case NOT_INITIALIZED:
 323         // If the initialization is not yet done, trigger it.
 324         Initialize();
 325         return;
 326
 327       case INITIALIZING:
 328       case REMOUNTING:
 329         // If the state is INITIALIZING or REMOUNTING, at the end of the
 330         // process, it tries to mounting (with re-checking enabled state).
 331         // Do nothing for now.
 332         return;
 333
 334       case INITIALIZED:
 335         // The integration service is already initialized. Add the mount point.
 336         AddDriveMountPoint();
 337         return;
 338     }
 339     NOTREACHED();
 340   } else {
 341     RemoveDriveMountPoint();
 342     enabled_ = false;
 343   }
 344 }
 345
 346 bool DriveIntegrationService::IsMounted() const {
 347   if (mount_point_name_.empty())
 348     return false;
 349
 350   // Look up the registered path, and just discard it.
 351   // GetRegisteredPath() returns true if the path is available.
 352   base::FilePath unused;
 353   storage::ExternalMountPoints* const mount_points =
 354       storage::ExternalMountPoints::GetSystemInstance();
 355   DCHECK(mount_points);
 356   return mount_points->GetRegisteredPath(mount_point_name_, &unused);
 357 }
 358
 359 void DriveIntegrationService::AddObserver(
 360     DriveIntegrationServiceObserver* observer) {
 361   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 362   observers_.AddObserver(observer);
 363 }
 364
 365 void DriveIntegrationService::RemoveObserver(
 366     DriveIntegrationServiceObserver* observer) {
 367   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 368   observers_.RemoveObserver(observer);
 369 }
 370
 371 void DriveIntegrationService::OnNotificationReceived() {
 372   file_system_->CheckForUpdates();
 373   drive_app_registry_->Update();
 374 }
 375
 376 void DriveIntegrationService::OnPushNotificationEnabled(bool enabled) {
 377   if (enabled)
 378     drive_app_registry_->Update();
 379
 380   const char* status = (enabled ? "enabled" : "disabled");
 381   logger_->Log(logging::LOG_INFO, "Push notification is %s", status);
 382 }
 383
 384 void DriveIntegrationService::ClearCacheAndRemountFileSystem(
 385     const base::Callback<void(bool)>& callback) {
 386   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 387   DCHECK(!callback.is_null());
 388
 389   if (state_ != INITIALIZED) {
 390     callback.Run(false);
 391     return;
 392   }
 393
 394   RemoveDriveMountPoint();
 395
 396   state_ = REMOUNTING;
 397   // Reloads the Drive app registry.
 398   drive_app_registry_->Update();
 399   // Resetting the file system clears resource metadata and cache.
 400   file_system_->Reset(base::Bind(
 401       &DriveIntegrationService::AddBackDriveMountPoint,
 402       weak_ptr_factory_.GetWeakPtr(),
 403       callback));
 404 }
 405
 406 void DriveIntegrationService::AddBackDriveMountPoint(
 407     const base::Callback<void(bool)>& callback,
 408     FileError error) {
 409   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 410   DCHECK(!callback.is_null());
 411
 412   state_ = error == FILE_ERROR_OK ? INITIALIZED : NOT_INITIALIZED;
 413
 414   if (error != FILE_ERROR_OK || !enabled_) {
 415     // Failed to reset, or Drive was disabled during the reset.
 416     callback.Run(false);
 417     return;
 418   }
 419
 420   AddDriveMountPoint();
 421   callback.Run(true);
 422 }
 423
 424 void DriveIntegrationService::AddDriveMountPoint() {
 425   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 426   DCHECK_EQ(INITIALIZED, state_);
 427   DCHECK(enabled_);
 428
 429   const base::FilePath& drive_mount_point =
 430       util::GetDriveMountPointPath(profile_);
 431   if (mount_point_name_.empty())
 432     mount_point_name_ = drive_mount_point.BaseName().AsUTF8Unsafe();
 433   storage::ExternalMountPoints* const mount_points =
 434       storage::ExternalMountPoints::GetSystemInstance();
 435   DCHECK(mount_points);
 436
 437   bool success =
 438       mount_points->RegisterFileSystem(mount_point_name_,
 439                                        storage::kFileSystemTypeDrive,
 440                                        storage::FileSystemMountOption(),
 441                                        drive_mount_point);
 442
 443   if (success) {
 444     logger_->Log(logging::LOG_INFO, "Drive mount point is added");
 445     FOR_EACH_OBSERVER(DriveIntegrationServiceObserver, observers_,
 446                       OnFileSystemMounted());
 447   }
 448 }
 449
 450 void DriveIntegrationService::RemoveDriveMountPoint() {
 451   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 452
 453   if (!mount_point_name_.empty()) {
 454     job_list()->CancelAllJobs();
 455
 456     FOR_EACH_OBSERVER(DriveIntegrationServiceObserver, observers_,
 457                       OnFileSystemBeingUnmounted());
 458
 459     storage::ExternalMountPoints* const mount_points =
 460         storage::ExternalMountPoints::GetSystemInstance();
 461     DCHECK(mount_points);
 462
 463     mount_points->RevokeFileSystem(mount_point_name_);
 464     logger_->Log(logging::LOG_INFO, "Drive mount point is removed");
 465   }
 466 }
 467
 468 void DriveIntegrationService::Initialize() {
 469   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 470   DCHECK_EQ(NOT_INITIALIZED, state_);
 471   DCHECK(enabled_);
 472
 473   state_ = INITIALIZING;
 474
 475   base::PostTaskAndReplyWithResult(
 476       blocking_task_runner_.get(),
 477       FROM_HERE,
 478       base::Bind(&InitializeMetadata,
 479                  cache_root_directory_,
 480                  metadata_storage_.get(),
 481                  cache_.get(),
 482                  resource_metadata_.get(),
 483                  file_manager::util::GetDownloadsFolderForProfile(profile_)),
 484       base::Bind(&DriveIntegrationService::InitializeAfterMetadataInitialized,
 485                  weak_ptr_factory_.GetWeakPtr()));
 486 }
 487
 488 void DriveIntegrationService::InitializeAfterMetadataInitialized(
 489     FileError error) {
 490   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 491   DCHECK_EQ(INITIALIZING, state_);
 492
 493   SigninManagerBase* signin_manager =
 494       SigninManagerFactory::GetForProfile(profile_);
 495   drive_service_->Initialize(signin_manager->GetAuthenticatedAccountId());
 496
 497   if (error != FILE_ERROR_OK) {
 498     LOG(WARNING) << "Failed to initialize: " << FileErrorToString(error);
 499
 500     // Cannot used Drive. Set the download destination preference out of Drive.
 501     AvoidDriveAsDownloadDirecotryPreference();
 502
 503     // Back to NOT_INITIALIZED state. Then, re-running Initialize() should
 504     // work if the error is recoverable manually (such as out of disk space).
 505     state_ = NOT_INITIALIZED;
 506     return;
 507   }
 508
 509   // Initialize Download Handler for hooking downloads to the Drive folder.
 510   content::DownloadManager* download_manager =
 511       g_browser_process->download_status_updater() ?
 512       BrowserContext::GetDownloadManager(profile_) : NULL;
 513   download_handler_->Initialize(
 514       download_manager,
 515       cache_root_directory_.Append(kTemporaryFileDirectory));
 516
 517   // Install the handler also to incognito profile.
 518   if (g_browser_process->download_status_updater()) {
 519     if (profile_->HasOffTheRecordProfile()) {
 520       download_handler_->ObserveIncognitoDownloadManager(
 521           BrowserContext::GetDownloadManager(
 522               profile_->GetOffTheRecordProfile()));
 523     }
 524     profile_notification_registrar_.reset(new content::NotificationRegistrar);
 525     profile_notification_registrar_->Add(
 526         this,
 527         chrome::NOTIFICATION_PROFILE_CREATED,
 528         content::NotificationService::AllSources());
 529   }
 530
 531   // Register for Google Drive invalidation notifications.
 532   DriveNotificationManager* drive_notification_manager =
 533       DriveNotificationManagerFactory::GetForBrowserContext(profile_);
 534   if (drive_notification_manager) {
 535     drive_notification_manager->AddObserver(this);
 536     const bool registered =
 537         drive_notification_manager->push_notification_registered();
 538     const char* status = (registered ? "registered" : "not registered");
 539     logger_->Log(logging::LOG_INFO, "Push notification is %s", status);
 540
 541     if (drive_notification_manager->push_notification_enabled())
 542       drive_app_registry_->Update();
 543   }
 544
 545   state_ = INITIALIZED;
 546
 547   // Mount only when the drive is enabled. Initialize is triggered by
 548   // SetEnabled(true), but there is a change to disable it again during
 549   // the metadata initialization, so we need to look this up again here.
 550   if (enabled_)
 551     AddDriveMountPoint();
 552 }
 553
 554 void DriveIntegrationService::AvoidDriveAsDownloadDirecotryPreference() {
 555   PrefService* pref_service = profile_->GetPrefs();
 556   if (util::IsUnderDriveMountPoint(
 557           pref_service->GetFilePath(::prefs::kDownloadDefaultDirectory))) {
 558     pref_service->SetFilePath(
 559         ::prefs::kDownloadDefaultDirectory,
 560         file_manager::util::GetDownloadsFolderForProfile(profile_));
 561   }
 562 }
 563
 564 void DriveIntegrationService::Observe(
 565     int type,
 566     const content::NotificationSource& source,
 567     const content::NotificationDetails& details) {
 568   if (type == chrome::NOTIFICATION_PROFILE_CREATED) {
 569     Profile* created_profile = content::Source<Profile>(source).ptr();
 570     if (created_profile->IsOffTheRecord() &&
 571         created_profile->IsSameProfile(profile_)) {
 572       download_handler_->ObserveIncognitoDownloadManager(
 573           BrowserContext::GetDownloadManager(created_profile));
 574     }
 575   }
 576 }
 577
 578 //===================== DriveIntegrationServiceFactory =======================
 579
 580 DriveIntegrationServiceFactory::FactoryCallback*
 581     DriveIntegrationServiceFactory::factory_for_test_ = NULL;
 582
 583 DriveIntegrationServiceFactory::ScopedFactoryForTest::ScopedFactoryForTest(
 584     FactoryCallback* factory_for_test) {
 585   factory_for_test_ = factory_for_test;
 586 }
 587
 588 DriveIntegrationServiceFactory::ScopedFactoryForTest::~ScopedFactoryForTest() {
 589   factory_for_test_ = NULL;
 590 }
 591
 592 // static
 593 DriveIntegrationService* DriveIntegrationServiceFactory::GetForProfile(
 594     Profile* profile) {
 595   return static_cast<DriveIntegrationService*>(
 596       GetInstance()->GetServiceForBrowserContext(profile, true));
 597 }
 598
 599 // static
 600 DriveIntegrationService* DriveIntegrationServiceFactory::FindForProfile(
 601     Profile* profile) {
 602   return static_cast<DriveIntegrationService*>(
 603       GetInstance()->GetServiceForBrowserContext(profile, false));
 604 }
 605
 606 // static
 607 DriveIntegrationServiceFactory* DriveIntegrationServiceFactory::GetInstance() {
 608   return Singleton<DriveIntegrationServiceFactory>::get();
 609 }
 610
 611 DriveIntegrationServiceFactory::DriveIntegrationServiceFactory()
 612     : BrowserContextKeyedServiceFactory(
 613         "DriveIntegrationService",
 614         BrowserContextDependencyManager::GetInstance()) {
 615   DependsOn(ProfileOAuth2TokenServiceFactory::GetInstance());
 616   DependsOn(DriveNotificationManagerFactory::GetInstance());
 617   DependsOn(DownloadServiceFactory::GetInstance());
 618 }
 619
 620 DriveIntegrationServiceFactory::~DriveIntegrationServiceFactory() {
 621 }
 622
 623 content::BrowserContext* DriveIntegrationServiceFactory::GetBrowserContextToUse(
 624     content::BrowserContext* context) const {
 625   return chrome::GetBrowserContextRedirectedInIncognito(context);
 626 }
 627
 628 KeyedService* DriveIntegrationServiceFactory::BuildServiceInstanceFor(
 629     content::BrowserContext* context) const {
 630   Profile* profile = Profile::FromBrowserContext(context);
 631
 632   DriveIntegrationService* service = NULL;
 633   if (!factory_for_test_) {
 634     DriveIntegrationService::PreferenceWatcher* preference_watcher = NULL;
 635     if (chromeos::IsProfileAssociatedWithGaiaAccount(profile)) {
 636       // Drive File System can be enabled.
 637       preference_watcher =
 638           new DriveIntegrationService::PreferenceWatcher(profile->GetPrefs());
 639     }
 640
 641     service = new DriveIntegrationService(
 642         profile, preference_watcher,
 643         NULL, std::string(), base::FilePath(), NULL);
 644   } else {
 645     service = factory_for_test_->Run(profile);
 646   }
 647
 648   return service;
 649 }
 650
 651 }  // namespace drive