Implement smoother autosizing of the extension options overlay

chrome/test/data/extensions/api_test/extension_options/embed_self/test.js

Index: chrome/test/data/extensions/api_test/extension_options/embed_self/test.js
diff --git a/chrome/test/data/extensions/api_test/extension_options/embed_self/test.js b/chrome/test/data/extensions/api_test/extension_options/embed_self/test.js
index 6c0e3a436221107b5a9a8e5546f7c7bdac5c05d0..d2f10653a01186f542b0c397485201a48526076c 100644
--- a/chrome/test/data/extensions/api_test/extension_options/embed_self/test.js
+++ b/chrome/test/data/extensions/api_test/extension_options/embed_self/test.js
@@ -125,10 +125,10 @@ chrome.test.runTests([
 
     extensionoptions.onsizechanged = function(evt) {
       try {
-        chrome.test.assertTrue(evt.width >= 499);
-        chrome.test.assertTrue(evt.height >= 499);
-        chrome.test.assertTrue(evt.width <= 501);
-        chrome.test.assertTrue(evt.height <= 501);
+        chrome.test.assertTrue(evt.newWidth >= 499);
+        chrome.test.assertTrue(evt.newHeight >= 499);
+        chrome.test.assertTrue(evt.newWidth <= 501);
+        chrome.test.assertTrue(evt.newHeight <= 501);
         done();
       } finally {
         document.body.removeChild(extensionoptions);