| Index: Source/modules/indexeddb/IDBDatabase.idl
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| diff --git a/Source/modules/indexeddb/IDBDatabase.idl b/Source/modules/indexeddb/IDBDatabase.idl
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| index 5ebbd32014242250ebbda72c3a0e0808248f3aec..41e8ff059f22c49b22d5334be1168039c1eacd96 100644
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| --- a/Source/modules/indexeddb/IDBDatabase.idl
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| +++ b/Source/modules/indexeddb/IDBDatabase.idl
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| @@ -36,9 +36,9 @@
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|      [RaisesException] IDBObjectStore createObjectStore(DOMString name, optional Dictionary options);
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|      [RaisesException] void deleteObjectStore(DOMString name);
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|      // FIXME: should be union type http://crbug.com/240176
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| -    [CallWith=ExecutionContext, RaisesException] IDBTransaction transaction(DOMString storeName, [Default=NullString] optional DOMString mode);
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| -    [CallWith=ExecutionContext, RaisesException] IDBTransaction transaction(sequence<DOMString> storeNames, [Default=NullString] optional DOMString mode);
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| -    [CallWith=ExecutionContext, RaisesException] IDBTransaction transaction(DOMStringList storeNames, [Default=NullString] optional DOMString mode);
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| +    [CallWith=ExecutionContext, RaisesException] IDBTransaction transaction(DOMString storeName, optional DOMString mode = null);
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| +    [CallWith=ExecutionContext, RaisesException] IDBTransaction transaction(sequence<DOMString> storeNames, optional DOMString mode = null);
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| +    [CallWith=ExecutionContext, RaisesException] IDBTransaction transaction(DOMStringList storeNames, optional DOMString mode = null);
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|      void close();
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|      attribute EventHandler onabort;
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|      attribute EventHandler onclose;
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| 
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