[IndexedDB] Refactoring to remove ref ptrs and host transaction ids.

content/browser/indexed_db/indexed_db_database_callbacks.h

Index: content/browser/indexed_db/indexed_db_database_callbacks.h
diff --git a/content/browser/indexed_db/indexed_db_database_callbacks.h b/content/browser/indexed_db/indexed_db_database_callbacks.h
index 23298cdebf379efd7f47b3e601fa351e88651d4c..1978d720bf7f3a414e671adb6af3645e66ae690c 100644
--- a/content/browser/indexed_db/indexed_db_database_callbacks.h
+++ b/content/browser/indexed_db/indexed_db_database_callbacks.h
@@ -17,6 +17,7 @@
 namespace content {
 class IndexedDBDatabaseError;
 class IndexedDBDispatcherHost;
+class IndexedDBTransaction;
 
 class CONTENT_EXPORT IndexedDBDatabaseCallbacks
     : public base::RefCounted<IndexedDBDatabaseCallbacks> {
@@ -28,9 +29,9 @@ class CONTENT_EXPORT IndexedDBDatabaseCallbacks
   virtual void OnForcedClose();
   virtual void OnVersionChange(int64_t old_version, int64_t new_version);
 
-  virtual void OnAbort(int64_t host_transaction_id,
+  virtual void OnAbort(const IndexedDBTransaction& transaction,
                        const IndexedDBDatabaseError& error);
-  virtual void OnComplete(int64_t host_transaction_id);
+  virtual void OnComplete(const IndexedDBTransaction& transaction);
   virtual void OnDatabaseChange(
       ::indexed_db::mojom::ObserverChangesPtr changes);