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

components/sync/core_impl/debug_info_event_listener.cc

Index: components/sync/core_impl/debug_info_event_listener.cc
diff --git a/components/sync/core_impl/debug_info_event_listener.cc b/components/sync/core_impl/debug_info_event_listener.cc
index 42b935856de8e0619aab20ad39b5f12eedeb2c63..2d03fc3096509b5f8620b5320599bf5c0b16012b 100644
--- a/components/sync/core_impl/debug_info_event_listener.cc
+++ b/components/sync/core_impl/debug_info_event_listener.cc
@@ -10,8 +10,6 @@
 
 namespace syncer {
 
-using sessions::SyncSessionSnapshot;
-
 DebugInfoEventListener::DebugInfoEventListener()
     : events_dropped_(false),
       cryptographer_has_pending_keys_(false),
@@ -21,7 +19,7 @@ DebugInfoEventListener::DebugInfoEventListener()
 DebugInfoEventListener::~DebugInfoEventListener() {}
 
 void DebugInfoEventListener::OnSyncCycleCompleted(
-    const SyncSessionSnapshot& snapshot) {
+    const SyncCycleSnapshot& snapshot) {
   DCHECK(thread_checker_.CalledOnValidThread());
   sync_pb::DebugEventInfo event_info;
   sync_pb::SyncCycleCompletedEventInfo* sync_completed_event_info =