Converted IDBVersionChangeEvent.dataLoss to an enumeration: IDBDataLossAmount

LayoutTests/storage/indexeddb/event-init.html

Index: LayoutTests/storage/indexeddb/event-init.html
diff --git a/LayoutTests/storage/indexeddb/event-init.html b/LayoutTests/storage/indexeddb/event-init.html
index 5afd20a6d3d1f8012b33699013e8076bed9dfbf4..36ba20fedb0d92938fe220ba4f7c310964c3d23c 100644
--- a/LayoutTests/storage/indexeddb/event-init.html
+++ b/LayoutTests/storage/indexeddb/event-init.html
@@ -8,6 +8,7 @@ shouldBeTrue("event instanceof IDBVersionChangeEvent");
 shouldBeEqualToString("event.type", "default");
 shouldBe("event.oldVersion", "0");
 shouldBe("event.newVersion", "null");
+shouldBe("event.dataLoss", '"none"');
 
 debug("");
 evalAndLog("initEvent = {oldVersion: 123, newVersion: 456}");
@@ -16,6 +17,16 @@ shouldBeTrue("event instanceof IDBVersionChangeEvent");
 shouldBeEqualToString("event.type", "foo");
 shouldBe("event.oldVersion", "initEvent.oldVersion");
 shouldBe("event.newVersion", "initEvent.newVersion");
+shouldBe("event.dataLoss", '"none"');
+
+debug("");
+evalAndLog("initEvent = {oldVersion: 124, newVersion: 457, dataLoss: 'total'}");
+evalAndLog("event = new IDBVersionChangeEvent('foo2', initEvent)");
+shouldBeTrue("event instanceof IDBVersionChangeEvent");
+shouldBeEqualToString("event.type", "foo2");
+shouldBe("event.oldVersion", "initEvent.oldVersion");
+shouldBe("event.newVersion", "initEvent.newVersion");
+shouldBe("event.dataLoss", "initEvent.dataLoss");
 
 debug("");
 evalAndLog("initEvent = {oldVersion: 'legacy', newVersion: null}");
@@ -25,5 +36,6 @@ shouldBeEqualToString("event.type", "bar");
 // We pull strings out of legacy databases, but don't let them be created
 shouldBe("event.oldVersion", "0");
 shouldBeNull("event.newVersion");
+shouldBe("event.dataLoss", '"none"');
 
 </script>