[Sync] Move events files around a bit.

components/sync/engine_impl/events/normal_get_updates_request_event.h

Index: components/sync/engine_impl/events/normal_get_updates_request_event.h
diff --git a/components/sync/engine/events/normal_get_updates_request_event.h b/components/sync/engine_impl/events/normal_get_updates_request_event.h
similarity index 88%
rename from components/sync/engine/events/normal_get_updates_request_event.h
rename to components/sync/engine_impl/events/normal_get_updates_request_event.h
index 91225c58b5ac2be03c9ad2bc10e0e48e79c54b52..8a028def6813e991b6bf2eb97548e6929aa2d152 100644
--- a/components/sync/engine/events/normal_get_updates_request_event.h
+++ b/components/sync/engine_impl/events/normal_get_updates_request_event.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef COMPONENTS_SYNC_ENGINE_EVENTS_NORMAL_GET_UPDATES_REQUEST_EVENT_H_
-#define COMPONENTS_SYNC_ENGINE_EVENTS_NORMAL_GET_UPDATES_REQUEST_EVENT_H_
+#ifndef COMPONENTS_SYNC_ENGINE_IMPL_EVENTS_NORMAL_GET_UPDATES_REQUEST_EVENT_H_
+#define COMPONENTS_SYNC_ENGINE_IMPL_EVENTS_NORMAL_GET_UPDATES_REQUEST_EVENT_H_
 
 #include <memory>
 #include <string>
@@ -56,4 +56,4 @@ class NormalGetUpdatesRequestEvent : public ProtocolEvent {
 
 }  // namespace syncer
 
-#endif  // COMPONENTS_SYNC_ENGINE_EVENTS_NORMAL_GET_UPDATES_REQUEST_EVENT_H_
+#endif  // COMPONENTS_SYNC_ENGINE_IMPL_EVENTS_NORMAL_GET_UPDATES_REQUEST_EVENT_H_