[sync] Componentize sync: Part Final: Target 'sync' is now its own component

sync/syncable/syncable_read_transaction.h

Index: sync/syncable/syncable_read_transaction.h
diff --git a/sync/syncable/syncable_read_transaction.h b/sync/syncable/syncable_read_transaction.h
index ecaf59b1b86655ff2a78b489c13c1b909c8befe8..2b9729d4662d8aee840499a92a94a19c68753306 100644
--- a/sync/syncable/syncable_read_transaction.h
+++ b/sync/syncable/syncable_read_transaction.h
@@ -13,7 +13,7 @@ class ReadTransaction;
 namespace syncable {
 
 // Locks db in constructor, unlocks in destructor.
-class SYNC_EXPORT_PRIVATE ReadTransaction : public BaseTransaction {
+class SYNC_EXPORT ReadTransaction : public BaseTransaction {
  public:
   ReadTransaction(const tracked_objects::Location& from_here,
                   Directory* directory);