[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 5a12bdf4a571efa10d28d7867720b97514c0f916..8fe19bce726feaf72fd05f6502a5e47a6e238712 100644
--- a/content/browser/indexed_db/indexed_db_database_callbacks.h
+++ b/content/browser/indexed_db/indexed_db_database_callbacks.h
@@ -18,6 +18,7 @@ namespace content {
 class IndexedDBDatabaseError;
 class IndexedDBDispatcherHost;
 class IndexedDBObserverChanges;
+class IndexedDBTransaction;
 
 class CONTENT_EXPORT IndexedDBDatabaseCallbacks
     : public base::RefCounted<IndexedDBDatabaseCallbacks> {
@@ -30,9 +31,9 @@ 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(
       std::unique_ptr<IndexedDBObserverChanges> changes);