Revert of Move some sync/notifier to components/invalidation

sync/notifier/invalidator_test_template.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/notifier/invalidator_test_template.h"
+
+namespace syncer {
+namespace internal {
+
+BoundFakeInvalidationHandler::BoundFakeInvalidationHandler(
+    const Invalidator& invalidator)
+    : invalidator_(invalidator),
+      last_retrieved_state_(DEFAULT_INVALIDATION_ERROR) {}
+
+BoundFakeInvalidationHandler::~BoundFakeInvalidationHandler() {}
+
+InvalidatorState BoundFakeInvalidationHandler::GetLastRetrievedState() const {
+  return last_retrieved_state_;
+}
+
+void BoundFakeInvalidationHandler::OnInvalidatorStateChange(
+    InvalidatorState state) {
+  FakeInvalidationHandler::OnInvalidatorStateChange(state);
+  last_retrieved_state_ = invalidator_.GetInvalidatorState();
+}
+
+}  // namespace internal
+}  // namespace syncer