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

components/browser_sync/browser/profile_sync_service_mock.h

Index: components/browser_sync/browser/profile_sync_service_mock.h
diff --git a/components/browser_sync/browser/profile_sync_service_mock.h b/components/browser_sync/browser/profile_sync_service_mock.h
index 1098bd5e4dea1fdc8b17d7ba0b0c14aa6527b1b5..33910f3747dec5622bad0178e3a353792a8d6d26 100644
--- a/components/browser_sync/browser/profile_sync_service_mock.h
+++ b/components/browser_sync/browser/profile_sync_service_mock.h
@@ -62,8 +62,7 @@ class ProfileSyncServiceMock : public ProfileSyncService {
   MOCK_CONST_METHOD0(GetActiveDataTypes, syncer::ModelTypeSet());
   MOCK_CONST_METHOD0(GetPreferredDataTypes, syncer::ModelTypeSet());
   MOCK_CONST_METHOD0(GetRegisteredDataTypes, syncer::ModelTypeSet());
-  MOCK_CONST_METHOD0(GetLastSessionSnapshot,
-                     syncer::sessions::SyncSessionSnapshot());
+  MOCK_CONST_METHOD0(GetLastCycleSnapshot, syncer::SyncCycleSnapshot());
 
   MOCK_METHOD1(QueryDetailedSyncStatus,
                bool(browser_sync::SyncBackendHost::Status* result));