Sync: Add DeviceInfo's ChangeProcessor

sync/test/engine/test_directory_setter_upper.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/test/engine/test_directory_setter_upper.h"
 
 #include "base/compiler_specific.h"
 #include "base/file_util.h"
 #include "base/location.h"
 #include "base/string_util.h"
 #include "sync/syncable/directory.h"
 #include "sync/syncable/in_memory_directory_backing_store.h"
+#include "sync/syncable/mutable_entry.h"
 #include "sync/syncable/read_transaction.h"
-#include "sync/test/null_transaction_observer.h"
+#include "sync/syncable/write_transaction.h"
+#include "sync/test/test_transaction_observer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace syncer {
 
-using syncable::NullTransactionObserver;
-
 TestDirectorySetterUpper::TestDirectorySetterUpper() : name_("Test") {}
 
 TestDirectorySetterUpper::~TestDirectorySetterUpper() {}
 
 void TestDirectorySetterUpper::SetUp() {
+  test_transaction_observer_.reset(new syncable::TestTransactionObserver());
+  WeakHandle<syncable::TransactionObserver> transaction_observer =
+      MakeWeakHandle(test_transaction_observer_->AsWeakPtr());
+
   directory_.reset(new syncable::Directory(
       new syncable::InMemoryDirectoryBackingStore(name_),
       &handler_,
       NULL,
       &encryption_handler_,
       encryption_handler_.cryptographer()));
   ASSERT_EQ(syncable::OPENED, directory_->Open(
-          name_, &delegate_, NullTransactionObserver()));
+          name_, &delegate_, transaction_observer));
 }
 
 void TestDirectorySetterUpper::TearDown() {
   if (!directory()->good())
     return;
 
   RunInvariantCheck();
   directory()->SaveChanges();
   RunInvariantCheck();
   directory()->SaveChanges();
 
   directory_.reset();
 }
 
 void TestDirectorySetterUpper::RunInvariantCheck() {
   // Check invariants for all items.
   syncable::ReadTransaction trans(FROM_HERE, directory());
 
   // The TestUnrecoverableErrorHandler that this directory was constructed with
   // will handle error reporting, so we can safely ignore the return value.
   directory()->FullyCheckTreeInvariants(&trans);
 }
 
 }  // namespace syncer