Add setBounds method and browsertest for get/set bounds to app window API

chrome/test/data/extensions/platform_apps/windows_api_bounds/background.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.
+
+chrome.app.runtime.onLaunched.addListener(function() {
+  chrome.app.window.create("main.html", function(win){
+    // Make sure we get back a bounds and that it isn't all 0's.
+    var bounds = win.getBounds();
+    if (!bounds ||
+        (bounds.top == 0 && bounds.left == 0 &&
+         bounds.width == 0 && bounds.height == 0)) {
+      console.error("invalid bounds after app.window.create:" +
+                    JSON.stringify(bounds));
+      win.close();
+      window.close();

[jeremya, 2012/11/13 06:16:30]

Why win.close() AND window.close()?

[asargent_no_longer_on_chrome, 2012/11/14 05:22:12]

This makes the test fail faster. If we just closed the app window, then the
background page wouldn't close until the transient background page timeout which
is something like 10 seconds.

Note that I'm not using the apitest.js stuff in this test because I need to pass
expected bounds information back to the app window's main.js via the
ExtensionTestMessageListener, so I can't just call chrome.test.fail() here. 

+    } else {
+      chrome.test.sendMessage("background_ok");
+    }
+  });
+});