Remove FileException

LayoutTests/fast/filesystem/resources/file-writer-abort-depth.js

 if (this.importScripts) {
     importScripts('fs-worker-common.js');
     importScripts('../../js/resources/js-test-pre.js');
     importScripts('file-writer-utils.js');
 }
 
 description("Test that FileWriter defends against infinite recursion via abort.");
 
 var sawWriteStart;
 var sawAbort;
@@ skipping 13 matching lines @@
 // We should always abort before completion.
 function onWrite(e) {
     testFailed("In onWrite.");
 }
 
 function onAbort(e) {
     testPassed("Saw abort");
     try {
       method();
     } catch (ex) {
-      assert(ex.code == 2);  // Security error
+      assert(ex.name == 'SecurityError');
       testPassed("Saw security error");
     }
 }
 
 function onWriteEnd(e) {
     --recursionDepth;
     testPassed("Saw writeend.");
     if (!recursionDepth) {
         ++testsRun;
         if (testsRun == 1) {
@@ skipping 17 matching lines @@
     fileWriter.onerror = onError;
     fileWriter.onabort = onAbort;
     fileWriter.onwritestart = onWriteStart;
     fileWriter.onwrite = onWrite;
     fileWriter.onwriteend = onWriteEnd;
     method();
 }
 
 var jsTestIsAsync = true;
 setupAndRunTest(2*1024*1024, 'file-writer-abort-depth', runTest);