IndexedDB: Defer delete calls when there is a running upgrade

third_party/WebKit/LayoutTests/storage/indexeddb/deletedatabase-delayed-by-open-and-versionchange-expected.txt

 Test that deleteDatabase is delayed if a VERSION_CHANGE transaction is running
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
 dbname = "deletedatabase-delayed-by-open-and-versionchange.html"
 indexedDB.deleteDatabase(dbname)
 indexedDB.open(dbname)
 
 prepareDatabase():
 sawVersionChange = false
 upgradeTransactionComplete = false
 h = event.target.result
 indexedDB.deleteDatabase(dbname)
 
+transactionOnComplete():
+upgradeTransactionComplete = true
+
+onOpenSuccess():
+h = event.target.result
+
 onVersionChange():
 PASS event.target.version is 1
 PASS event.oldVersion is 1
 PASS event.newVersion is null
 sawVersionChange = true
 Connection is not closed, so 'blocked' should fire
 
-transactionOnComplete():
-upgradeTransactionComplete = true
-
-onOpenSuccess():
-h = event.target.result
-h.close()
-Closing too late to prevent the in-flight 'blocked' event
-
 deleteDatabaseOnBlocked():
 PASS sawVersionChange is true
+h.close()
 
 deleteDatabaseOnSuccess():
 PASS upgradeTransactionComplete is true
 PASS successfullyParsed is true
 
 TEST COMPLETE