[Sync] Fixing easy lint violations.

components/sync/engine_impl/sync_engine_event_listener.h

Index: components/sync/engine_impl/sync_engine_event_listener.h
diff --git a/components/sync/engine_impl/sync_engine_event_listener.h b/components/sync/engine_impl/sync_engine_event_listener.h
index b590ffe14ecd673e747a4a78018cfdde4ea151b9..240a05474e18826ec739ef3bfff86ab974c21626 100644
--- a/components/sync/engine_impl/sync_engine_event_listener.h
+++ b/components/sync/engine_impl/sync_engine_event_listener.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_IMPL_SYNC_ENGINE_IMPL_EVENT_LISTENER_H_
-#define COMPONENTS_SYNC_ENGINE_IMPL_SYNC_ENGINE_IMPL_EVENT_LISTENER_H_
+#ifndef COMPONENTS_SYNC_ENGINE_IMPL_SYNC_ENGINE_EVENT_LISTENER_H_
+#define COMPONENTS_SYNC_ENGINE_IMPL_SYNC_ENGINE_EVENT_LISTENER_H_
 
 #include "base/time/time.h"
 #include "components/sync/base/model_type.h"
@@ -45,4 +45,4 @@ class SyncEngineEventListener {
 
 }  // namespace syncer
 
-#endif  // COMPONENTS_SYNC_ENGINE_IMPL_SYNC_ENGINE_IMPL_EVENT_LISTENER_H_
+#endif  // COMPONENTS_SYNC_ENGINE_IMPL_SYNC_ENGINE_EVENT_LISTENER_H_