Original patch by rlarocque@chromium.org at http://codereview.chromium.org/7633077/

chrome/browser/sync/internal_api/base_transaction.cc

+// Copyright (c) 2011 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 "base_transaction.h"
+
+#include "chrome/browser/sync/syncable/directory_manager.h"
+#include "chrome/browser/sync/util/cryptographer.h"
+
+using browser_sync::Cryptographer;
+
+namespace sync_api {
+
+//////////////////////////////////////////////////////////////////////////
+// BaseTransaction member definitions
+BaseTransaction::BaseTransaction(UserShare* share)
+    : lookup_(NULL) {
+  DCHECK(share && share->dir_manager.get());
+  lookup_ = new syncable::ScopedDirLookup(share->dir_manager.get(),
+                                          share->name);
+  cryptographer_ = share->dir_manager->GetCryptographer(this);
+  if (!(lookup_->good()))
+    DCHECK(false) << "ScopedDirLookup failed on valid DirManager.";
+}
+BaseTransaction::~BaseTransaction() {
+  delete lookup_;
+}
+
+syncable::ModelTypeSet GetEncryptedTypes(
+    const sync_api::BaseTransaction* trans) {
+  Cryptographer* cryptographer = trans->GetCryptographer();
+  return cryptographer->GetEncryptedTypes();
+}
+
+} // namespace sync_api