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

chrome/test/data/extensions/platform_apps/windows_api_bounds/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.
+
+function closeEnough(actual, expected, maxAllowedDifference) {
+  return Math.abs(actual - expected) < maxAllowedDifference;
+}
+
+function waitForBounds(expectedBounds, callback) {
+  function checkBounds() {
+    var bounds = chrome.app.window.current().getBounds();
+    if (closeEnough(bounds.left, expectedBounds.left, slop) &&
+        closeEnough(bounds.top, expectedBounds.top, slop) &&
+        closeEnough(bounds.width, expectedBounds.width, slop) &&
+        closeEnough(bounds.height, expectedBounds.height, slop)) {
+      callback();
+    } else {
+      setTimeout(checkBounds, 50);

[jeremya, 2012/11/02 05:06:41]

Can you add a TODO here to rewrite when bounds changed events are implemented?

[asargent_no_longer_on_chrome, 2012/11/09 20:25:35]

Done.

+    }
+  }
+  checkBounds();
+}
+
+var slop = 0;
+
+chrome.test.sendMessage("ready", function(response) {
+  slop = parseInt(response);
+  waitForBounds({left:100, top:200, width:300, height:400}, function() {
+    var newBounds = {left:50, top:100, width:150, height:200};
+    chrome.app.window.current().setBounds(newBounds);
+    waitForBounds(newBounds, function(){
+      chrome.test.sendMessage("success");
+    });
+  });
+});