Expose the chrome.windows.* API to platform apps.

chrome/test/data/extensions/platform_apps/windows_api/main.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.
+
+var callbackPass = chrome.test.callbackPass;
+
+// Only a few chrome.windows.* API methods are tested, it is assumed that the
+// full API is tested elsewhere.
+chrome.test.runTests([
+  function testGetCurrentWindow() {
+    chrome.windows.getCurrent(callbackPass(function(window) {
+      chrome.test.assertEq(250, window.width);
+      chrome.test.assertEq('shell', window.type);
+    }));
+  },
+
+  function testUpdateWindowWidth() {
+    chrome.windows.getCurrent(callbackPass(function(window) {
+      chrome.windows.update(
+          window.id, {width: 300}, callbackPass(function() {
+            // The timeout is rather lame, but reading back the width from the
+            // window manager (on Linux) immediately still reports the old
+            // value.
+            setTimeout(callbackPass(function() {
+              chrome.windows.getCurrent(callbackPass(function(window) {
+                chrome.test.assertEq(300, window.width);
+              }));
+            }), 100);
+          }));
+    }));
+  },
+
+  function testCreateWindow() {
+    var getShellWindowCount = function(callback) {
+      chrome.windows.getAll(function(windows) {
+        callback(windows.filter(
+            function(window) { return window.type == 'shell'}).length);
+      });
+    };
+
+    getShellWindowCount(callbackPass(function(shellWindowCount) {
+      chrome.test.assertEq(1, shellWindowCount);
+      chrome.windows.create({type: 'shell'}, callbackPass(function() {
+        getShellWindowCount(callbackPass(function(shellWindowCount) {
+          chrome.test.assertEq(2, shellWindowCount);
+        }));
+      }));
+    }));
+  }
+]);