Fire window.onerror for uncaught IndexedDB errors

Source/modules/indexeddb/IDBRequest.h

Index: Source/modules/indexeddb/IDBRequest.h
diff --git a/Source/modules/indexeddb/IDBRequest.h b/Source/modules/indexeddb/IDBRequest.h
index 1c9a49e0bceb9dc20833fecd68edd11e04aae7f9..5b7894aa162c9328ea2137a209805dffd496af37 100644
--- a/Source/modules/indexeddb/IDBRequest.h
+++ b/Source/modules/indexeddb/IDBRequest.h
@@ -49,8 +49,9 @@ namespace WebCore {
 
 class ExceptionState;
 class IDBCursor;
-struct IDBDatabaseMetadata;
+class ScriptCallStack;
 class SharedBuffer;
+struct IDBDatabaseMetadata;
 
 class IDBRequest
     : public RefCountedGarbageCollectedWillBeGarbageCollectedFinalized<IDBRequest>
@@ -165,6 +166,8 @@ private:
     bool m_didFireUpgradeNeededEvent;
     bool m_preventPropagation;
     bool m_resultDirty;
+
+    RefPtr<ScriptCallStack> m_creationStackTrace;
 };
 
 } // namespace WebCore