[Sync] Move sessions/ to engine/cycle/ and rename things to match.

components/sync/test/engine/mock_update_handler.cc

Index: components/sync/test/engine/mock_update_handler.cc
diff --git a/components/sync/test/engine/mock_update_handler.cc b/components/sync/test/engine/mock_update_handler.cc
index 58ec979ea30b9132caf2d653594f614f610571d9..4b01c654592cd03b59f29d24941631b62e5a30b0 100644
--- a/components/sync/test/engine/mock_update_handler.cc
+++ b/components/sync/test/engine/mock_update_handler.cc
@@ -38,17 +38,16 @@ SyncerError MockUpdateHandler::ProcessGetUpdatesResponse(
     const sync_pb::DataTypeProgressMarker& progress_marker,
     const sync_pb::DataTypeContext& mutated_context,
     const SyncEntityList& applicable_updates,
-    sessions::StatusController* status) {
+    StatusController* status) {
   progress_marker_.CopyFrom(progress_marker);
   return syncer::SYNCER_OK;
 }
 
-void MockUpdateHandler::ApplyUpdates(sessions::StatusController* status) {
+void MockUpdateHandler::ApplyUpdates(StatusController* status) {
   apply_updates_count_++;
 }
 
-void MockUpdateHandler::PassiveApplyUpdates(
-    sessions::StatusController* status) {
+void MockUpdateHandler::PassiveApplyUpdates(StatusController* status) {
   passive_apply_updates_count_++;
 }