Dartium Roll 38 roll

modules/indexeddb/IDBDatabase.idl

Index: modules/indexeddb/IDBDatabase.idl
diff --git a/modules/indexeddb/IDBDatabase.idl b/modules/indexeddb/IDBDatabase.idl
index 41e8ff059f22c49b22d5334be1168039c1eacd96..bb9c0384ab9be1d4826b83e531584717ba33010a 100644
--- a/modules/indexeddb/IDBDatabase.idl
+++ b/modules/indexeddb/IDBDatabase.idl
@@ -26,6 +26,13 @@
 
 // https://dvcs.w3.org/hg/IndexedDB/raw-file/default/Overview.html#idl-def-IDBDatabase
 
+// FIXME: de-duplicate this when crbug.com/390758 is fixed.
+enum IDBTransactionMode {
+    "readonly",
+    "readwrite",
+    "versionchange"
+};
+
 [
     ActiveDOMObject,
     GarbageCollected,
@@ -36,9 +43,9 @@
     [RaisesException] IDBObjectStore createObjectStore(DOMString name, optional Dictionary options);
     [RaisesException] void deleteObjectStore(DOMString name);
     // FIXME: should be union type http://crbug.com/240176
-    [CallWith=ExecutionContext, RaisesException] IDBTransaction transaction(DOMString storeName, optional DOMString mode = null);
-    [CallWith=ExecutionContext, RaisesException] IDBTransaction transaction(sequence<DOMString> storeNames, optional DOMString mode = null);
-    [CallWith=ExecutionContext, RaisesException] IDBTransaction transaction(DOMStringList storeNames, optional DOMString mode = null);
+    [CallWith=ExecutionContext, RaisesException] IDBTransaction transaction(DOMString storeName, optional IDBTransactionMode mode = "readonly");
+    [CallWith=ExecutionContext, RaisesException] IDBTransaction transaction(sequence<DOMString> storeNames, optional IDBTransactionMode mode = "readonly");
+    [CallWith=ExecutionContext, RaisesException] IDBTransaction transaction(DOMStringList storeNames, optional IDBTransactionMode mode = "readonly");
     void close();
     attribute EventHandler onabort;
     attribute EventHandler onclose;