Structured cloning: improve DataCloneError reporting.

Source/modules/indexeddb/IDBObjectStore.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 149 matching lines @@
     }
     if (!m_transaction->isActive()) {
         exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage);
         return 0;
     }
     if (m_transaction->isReadOnly()) {
         exceptionState.throwUninformativeAndGenericDOMException(ReadOnlyError);
         return 0;
     }
 
-    // FIXME: Make SerializedScriptValue::create etc take an ExceptionState or use ScriptState::setDOMException.
-    bool didThrow = false;
-    RefPtr<SerializedScriptValue> serializedValue = SerializedScriptValue::create(value, didThrow, state);
-    if (didThrow)
+    RefPtr<SerializedScriptValue> serializedValue = SerializedScriptValue::create(value, exceptionState, state);
+    if (exceptionState.hadException())
         return 0;
 
     if (serializedValue->containsBlobs()) {
         // FIXME: Add Blob/File/FileList support
         exceptionState.throwUninformativeAndGenericDOMException(DataCloneError);
         return 0;
     }
 
     const IDBKeyPath& keyPath = m_metadata.keyPath;
     const bool usesInLineKeys = !keyPath.isNull();
@@ skipping 435 matching lines @@
     }
     return IDBIndexMetadata::InvalidId;
 }
 
 WebIDBDatabase* IDBObjectStore::backendDB() const
 {
     return m_transaction->backendDB();
 }
 
 } // namespace WebCore