Attempting to fix problems in 11571014.

chrome/renderer/resources/extensions/file_system_custom_bindings.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Custom binding for the fileSystem API.
 
 var binding = require('binding').Binding.create('fileSystem');
 
 var fileSystemNatives = requireNative('file_system_natives');
 var GetIsolatedFileSystem = fileSystemNatives.GetIsolatedFileSystem;
@@ skipping 29 matching lines @@
         var fs = GetIsolatedFileSystem(fileSystemId);
 
         try {
           // TODO(koz): fs.root.getFile() makes a trip to the browser process,
           // but it might be possible avoid that by calling
           // WebFrame::createFileEntry().
           fs.root.getFile(baseName, {}, function(fileEntry) {
             entryIdManager.registerEntry(id, fileEntry);
             callback(fileEntry);
           }, function(fileError) {
-            lastError.set('Error getting fileEntry, code: ' + fileError.code);
-            callback();
+            lastError.run('Error getting fileEntry, code: ' + fileError.code,
+                          callback);
           });
         } catch (e) {
-          lastError.set('Error in event handler for onLaunched: ' + e.stack);
-          callback();
+          lastError.run('Error in event handler for onLaunched: ' + e.stack,
+                        callback);
         }
       }
     });
   }
   ['getWritableEntry', 'chooseEntry'].forEach(bindFileEntryCallback);
 
   apiFunctions.setHandleRequest('getEntryId', function(fileEntry) {
     return entryIdManager.getEntryId(fileEntry);
   });
 
@@ skipping 15 matching lines @@
   };
 
   fileSystem.chooseFile = function() {
     console.log("chrome.fileSystem.chooseFile is deprecated");
     console.log("Please use chrome.fileSystem.chooseEntry instead");
     fileSystem.chooseEntry.apply(this, arguments);
   };
 });
 
 exports.binding = binding.generate();