Let SyncBackupManager keep backup data in memory until shutdown. Only persist

sync/internal_api/test/test_internal_components_factory.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sync/internal_api/public/test/test_internal_components_factory.h"
 
 #include "sync/sessions/sync_session_context.h"
+#include "sync/syncable/deferred_on_disk_directory_backing_store.h"
 #include "sync/syncable/in_memory_directory_backing_store.h"
 #include "sync/syncable/on_disk_directory_backing_store.h"
 #include "sync/syncable/invalid_directory_backing_store.h"
 #include "sync/test/engine/fake_sync_scheduler.h"
 
 namespace syncer {
 
 TestInternalComponentsFactory::TestInternalComponentsFactory(
     const Switches& switches,
-    StorageOption option)
+    StorageOption option,
+    StorageOption* storage_used)
     : switches_(switches),
-      storage_option_(option) {
+      storage_override_(option),
+      storage_used_(storage_used) {
 }
 
 TestInternalComponentsFactory::~TestInternalComponentsFactory() { }
 
 scoped_ptr<SyncScheduler> TestInternalComponentsFactory::BuildScheduler(
     const std::string& name,
     sessions::SyncSessionContext* context,
     syncer::CancelationSignal* cancelation_signal) {
   return scoped_ptr<SyncScheduler>(new FakeSyncScheduler());
 }
@@ skipping 17 matching lines @@
           model_type_registry,
           switches_.encryption_method == ENCRYPTION_KEYSTORE,
           switches_.pre_commit_updates_policy ==
               FORCE_ENABLE_PRE_COMMIT_UPDATE_AVOIDANCE,
           invalidator_client_id));
 
 }
 
 scoped_ptr<syncable::DirectoryBackingStore>
 TestInternalComponentsFactory::BuildDirectoryBackingStore(
-      const std::string& dir_name, const base::FilePath& backing_filepath) {
-  switch (storage_option_) {
+    StorageOption storage, const std::string& dir_name,
+    const base::FilePath& backing_filepath) {
+  if (storage_used_)
+    *storage_used_ = storage;
+
+  switch (storage_override_) {
     case STORAGE_IN_MEMORY:
       return scoped_ptr<syncable::DirectoryBackingStore>(
           new syncable::InMemoryDirectoryBackingStore(dir_name));
     case STORAGE_ON_DISK:
       return scoped_ptr<syncable::DirectoryBackingStore>(
           new syncable::OnDiskDirectoryBackingStore(dir_name,
                                                     backing_filepath));
+    case STORAGE_ON_DISK_DEFERRED:
+      return scoped_ptr<syncable::DirectoryBackingStore>(
+          new syncable::DeferredOnDiskDirectoryBackingStore(dir_name,
+                                                            backing_filepath));
     case STORAGE_INVALID:
       return scoped_ptr<syncable::DirectoryBackingStore>(
           new syncable::InvalidDirectoryBackingStore());
   }
   NOTREACHED();
   return scoped_ptr<syncable::DirectoryBackingStore>();
 }
 
 InternalComponentsFactory::Switches
 TestInternalComponentsFactory::GetSwitches() const {
   return switches_;
 }
 
 }  // namespace syncer