[fsp] Group arguments for API methods and events in dictionaries.

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() {
     var onTestSuccess = chrome.test.callbackPass();
     chrome.fileSystemProvider.mount(
-        'file-system-id',
-        'File System Name',
+        {fileSystemId: 'file-system-id', displayName: 'file-system-name'},
         function() {
           onTestSuccess();
         },
         function(error) {
           chrome.test.fail();
         });
   },
 
   // Verifies that mounting fails, when an empty string is provided as a name.
   function emptyDisplayName() {
     var onTestSuccess = chrome.test.callbackPass();
     chrome.fileSystemProvider.mount(
-        'file-system-id',
-        '',
+        {fileSystemId: 'file-system-id', displayName: ''},
         function() {
           chrome.test.fail();
         },
         function(error) {
           chrome.test.assertEq('SecurityError', error.name);
           onTestSuccess();
         });
   },
   // Verifies that mounting fails, when an empty string is provided as an Id
   function emptyFileSystemId() {
     var onTestSuccess = chrome.test.callbackPass();
     chrome.fileSystemProvider.mount(
-        '',
-        'File System Name',
+        {fileSystemId: '', displayName: 'File System Name'},
         function() {
           chrome.test.fail();
         },
         function(error) {
           chrome.test.assertEq('SecurityError', error.name);
           onTestSuccess();
         }
       );
   },
 
   // End to end test. Mounts a volume using fileSystemProvider.mount(), then
   // checks if the mounted volume is added to VolumeManager, by querying
   // fileBrowserPrivate.getVolumeMetadataList().
   function successfulMount() {
     var onTestSuccess = chrome.test.callbackPass();
     var fileSystemId = 'caramel-candy';
     chrome.fileSystemProvider.mount(
-        fileSystemId,
-        'caramel-candy.zip',
+        {fileSystemId: fileSystemId, displayName: 'caramel-candy.zip'},
         function() {
           chrome.fileBrowserPrivate.getVolumeMetadataList(function(volumeList) {
             var found = false;
             volumeList.forEach(function(volumeInfo) {
               if (volumeInfo.extensionId == chrome.runtime.id &&
                   volumeInfo.fileSystemId == fileSystemId) {
                 found = true;
               }
             });
             chrome.test.assertTrue(found);
@@ skipping 12 matching lines @@
   function stressMountTest() {
     var onTestSuccess = chrome.test.callbackPass();
     var ALREADY_MOUNTED_FILE_SYSTEMS = 2;  // By previous tests.
     var MAX_FILE_SYSTEMS = 16;
     var index = 0;
     var tryNextOne = function() {
       index++;
       if (index < MAX_FILE_SYSTEMS - ALREADY_MOUNTED_FILE_SYSTEMS + 1) {
         var fileSystemId = index + '-stress-test';
         chrome.fileSystemProvider.mount(
-            fileSystemId,
-            index + 'th File System',
+            {fileSystemId: fileSystemId, displayName: index + 'th File System'},
             function() {
               tryNextOne();
             },
             function(error) {
               chrome.test.fail(error.name);
             });
       } else {
         chrome.fileSystemProvider.mount(
-            'over-the-limit-fs-id',
-            'Over The Limit File System',
+            {
+              fileSystemId: 'over-the-limit-fs-id',
+              displayName: 'Over The Limit File System'
+            },
             function() {
               chrome.test.fail();
             },
             function(error) {
               chrome.test.assertEq('SecurityError', error.name);
               onTestSuccess();
             });
       }
     };
     tryNextOne();
   }
 ]);