Fire window.onerror for uncaught IndexedDB errors

third_party/WebKit/LayoutTests/storage/indexeddb/resources/transaction-abort.js

 if (this.importScripts) {
     importScripts('../../../resources/js-test.js');
     importScripts('shared.js');
 }
 
 description("Test transaction aborts send the proper onabort messages..");
 
 indexedDBTest(prepareDatabase, startTest);
 function prepareDatabase()
 {
@@ skipping 15 matching lines @@
     request = evalAndLog("store.add({x: 'value3', y: 'zzz3'}, 'key3')");
     request.onerror = secondAdd;
     request.onsuccess = unexpectedSuccessCallback;
     trans.abort();
 
     firstError = false;
     secondError = false;
     abortFired = false;
 }
 
-function firstAdd()
+function firstAdd(evt)
 {
+    evt.preventDefault();
+
     shouldBe("event.target.error.name", "'AbortError'");
     shouldBeNull("trans.error");
     shouldBeFalse("firstError");
     shouldBeFalse("secondError");
     shouldBeFalse("abortFired");
     firstError = true;
 
     evalAndExpectException("store.add({x: 'value4', y: 'zzz4'}, 'key4')", "0", "'TransactionInactiveError'");
 }
 
-function secondAdd()
+function secondAdd(evt)
 {
+    evt.preventDefault();
+
     shouldBe("event.target.error.name", "'AbortError'");
     shouldBeNull("trans.error");
     shouldBeTrue("firstError");
     shouldBeFalse("secondError");
     shouldBeFalse("abortFired");
     secondError = true;
 }
 
 function transactionAborted()
 {
     shouldBeTrue("firstError");
     shouldBeTrue("secondError");
     shouldBeFalse("abortFired");
     shouldBeNull("trans.error");
     abortFired = true;
 
     evalAndExpectException("store.add({x: 'value5', y: 'zzz5'}, 'key5')", "0", "'TransactionInactiveError'");
 
     evalAndExpectException("trans.abort()", "DOMException.INVALID_STATE_ERR", "'InvalidStateError'");
 
     finishJSTest();
 }