Minor cleanup for SystemInfoStorageApiTest.

chrome/test/data/extensions/api_test/systeminfo/storage/test_storage_api.js

Index: chrome/test/data/extensions/api_test/systeminfo/storage/test_storage_api.js
===================================================================
--- chrome/test/data/extensions/api_test/systeminfo/storage/test_storage_api.js	(revision 213035)
+++ chrome/test/data/extensions/api_test/systeminfo/storage/test_storage_api.js	(working copy)
@@ -6,7 +6,8 @@
 // browser_tests --gtest_filter=SystemInfoStorageApiTest.Storage
 chrome.systemInfo = chrome.experimental.systemInfo;
 
-// Testing data should be the same as that in system_info_storage_apitest.cc
+// Testing data should be the same as |kTestingData| in
+// system_info_storage_apitest.cc.
 var testData = [
   { id:"transient:0004", name: "0xbeaf", type: "unknown", capacity: 4098,
     availableCapacity: 1000, step: 0 },
@@ -31,6 +32,7 @@
       }
     }));
   },
+
   function testChangedEvent() {
     var numOfChangedEvent = 0;
     var callbackCompleted = chrome.test.callbackAdded();