[fsp] Pass more detailed errors to the providing extension.

chrome/test/data/extensions/api_test/file_system_provider/mount/test.js

 // Copyright 2013 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.
 
 'use strict';
 
 /**
  * Runs all of the test cases, one by one.
  */
 chrome.test.runTests([
   // Tests whether mounting succeeds, when a non-empty name is provided.
   function goodDisplayName() {
     chrome.fileSystemProvider.mount(
         {fileSystemId: 'file-system-id', displayName: 'file-system-name'},
         chrome.test.callbackPass());
   },
 
   // Verifies that mounting fails, when an empty string is provided as a name.
   function emptyDisplayName() {
     chrome.fileSystemProvider.mount(
         {fileSystemId: 'file-system-id', displayName: ''},
-        chrome.test.callbackFail('SECURITY'));
+        chrome.test.callbackFail('INVALID_OPERATION'));
   },
 
   // Verifies that mounting fails, when an empty string is provided as an Id
   function emptyFileSystemId() {
     chrome.fileSystemProvider.mount(
         {fileSystemId: '', displayName: 'File System Name'},
-        chrome.test.callbackFail('SECURITY'));
+        chrome.test.callbackFail('INVALID_OPERATION'));
   },
 
   // End to end test. Mounts a volume using fileSystemProvider.mount(), then
   // checks if the mounted volume is added to VolumeManager, by querying
   // fileManagerPrivate.getVolumeMetadataList().
   function successfulMount() {
     var fileSystemId = 'caramel-candy';
     chrome.fileSystemProvider.mount(
         {fileSystemId: fileSystemId, displayName: 'caramel-candy.zip'},
         chrome.test.callbackPass(function() {
@@ skipping 50 matching lines @@
         var fileSystemId = index + '-stress-test';
         chrome.fileSystemProvider.mount(
             {fileSystemId: fileSystemId, displayName: index + 'th File System'},
             chrome.test.callbackPass(tryNextOne));
       } else {
         chrome.fileSystemProvider.mount(
             {
               fileSystemId: 'over-the-limit-fs-id',
               displayName: 'Over The Limit File System'
             },
-            chrome.test.callbackFail('SECURITY'));
+            chrome.test.callbackFail('TOO_MANY_OPENED'));
       }
     };
     tryNextOne();
   }
 ]);