Add systeminfo.storage API implementation skeleton

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
diff --git a/chrome/test/data/extensions/api_test/systeminfo/storage/test_storage_api.js b/chrome/test/data/extensions/api_test/systeminfo/storage/test_storage_api.js
new file mode 100644
index 0000000000000000000000000000000000000000..1595d608a74a16f0c1afa073d3d9dd209b855230
--- /dev/null
+++ b/chrome/test/data/extensions/api_test/systeminfo/storage/test_storage_api.js
@@ -0,0 +1,22 @@
+// 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.
+
+// systeminfo.storage api test
+// browser_tests.exe --gtest_filter=SysteminfoStorageApiTest.Storage
+
+chrome.systeminfo = chrome.experimental.systeminfo;
+
+chrome.test.runTests([
+  function testGet() {
+    chrome.systeminfo.storage.get(chrome.test.callbackPass(function(info) {
+      // TODO: Need to check the value from Mock implementation
+      chrome.test.assertTrue(info.units.length > 0);
+      var unit = info.units[0];
+      chrome.test.assertTrue(unit.id == "0xbeaf");
+      chrome.test.assertTrue(unit.type == "unknown");
+      chrome.test.assertTrue(unit.capacity == 4098);
+      chrome.test.assertTrue(unit.availableCapacity == 1000);
+    }));
+  }
+]);