Fire window.onerror for uncaught IndexedDB errors

LayoutTests/storage/indexeddb/resources/odd-strings.js

 if (this.importScripts) {
     importScripts('../../../resources/js-test.js');
     importScripts('shared.js');
 }
 
 description("Test IndexedDB odd value datatypes");
 
 function test()
 {
     testData = [{ description: 'empty string',       name: '' },
@@ skipping 16 matching lines @@
             if (++numDeleted == testData.length)
                 openNextDatabase();
         };
     }
 }
 
 function openNextDatabase()
 {
     debug("opening a database named " + testData[nextToOpen].description);
     request = evalAndLog("indexedDB.open(testData[nextToOpen].name, 1)");
-    request.onsuccess = unexpectedSuccessCallback;
     request.onblocked = unexpectedBlockedCallback;
     request.onupgradeneeded = addAKey;
+    request.onsuccess = closeDatabase;
 }
 
 function addAKey()
 {
     db = event.target.result;
     evalAndLog("objectStore = db.createObjectStore(testData[nextToOpen].name);");
     evalAndLog("index = objectStore.createIndex(testData[nextToOpen].name, 'keyPath');");
     evalAndLog("key = testData[nextToOpen].name");
     evalAndLog("request = objectStore.add(key, key);");
-    request.onsuccess = closeDatabase;
     request.onerror = unexpectedErrorCallback;
 }
 
 function closeDatabase()
 {
     evalAndLog("db.close()");
     debug("");
     if (++nextToOpen < testData.length) {
         openNextDatabase();
     } else {
@@ skipping 28 matching lines @@
     shouldBe("cursor.value", "testData[nextToOpen].name");
     if (++nextToOpen < testData.length) {
         debug("");
         verifyNextDatabase();
     } else {
         finishJSTest();
     }
 }
 
 test();