Make IDBTransaction ctor take ScriptState instead of ExecutionContext

Source/modules/indexeddb/IDBDatabase.idl

Index: Source/modules/indexeddb/IDBDatabase.idl
diff --git a/Source/modules/indexeddb/IDBDatabase.idl b/Source/modules/indexeddb/IDBDatabase.idl
index bb9c0384ab9be1d4826b83e531584717ba33010a..36ab560e13039b7397aca8df5b207fde7bf5b6c5 100644
--- a/Source/modules/indexeddb/IDBDatabase.idl
+++ b/Source/modules/indexeddb/IDBDatabase.idl
@@ -43,9 +43,9 @@ enum IDBTransactionMode {
     [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 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");
+    [CallWith=ScriptState, RaisesException] IDBTransaction transaction(DOMString storeName, optional IDBTransactionMode mode = "readonly");
+    [CallWith=ScriptState, RaisesException] IDBTransaction transaction(sequence<DOMString> storeNames, optional IDBTransactionMode mode = "readonly");
+    [CallWith=ScriptState, RaisesException] IDBTransaction transaction(DOMStringList storeNames, optional IDBTransactionMode mode = "readonly");
     void close();
     attribute EventHandler onabort;
     attribute EventHandler onclose;