Allow resizing a panel using chrome.windows.update() extension API.

chrome/test/data/extensions/api_test/window_update/show_state/test.js

 // Copyright (c) 2011 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 pass = chrome.test.callbackPass;
 
 var width = 0;
 var height = 0;
-var changedWidth = 500;
-var changedHeight = 500;
+
+var deltaWidth = 20;
+var deltaHeight = 30;
 
 function checkRestoreWithBounds(theWindow) {
   chrome.test.assertEq('normal', theWindow.state);
-  if (theWindow.type == 'panel') {
-    // Panels decide their own bounds.
-    chrome.test.assertEq(width, theWindow.width);
-    chrome.test.assertEq(height, theWindow.height);
-  } else {
-    chrome.test.assertEq(changedWidth, theWindow.width);
-    chrome.test.assertEq(changedHeight, theWindow.height);
-  }
-
+  chrome.test.assertEq(width, theWindow.width);
+  chrome.test.assertEq(height, theWindow.height);
   chrome.windows.remove(theWindow.id, pass());
 }
 
 function checkMaximized(theWindow) {
   if (theWindow.type == 'panel') {
     // Maximize is the same as restore for panels.
     chrome.test.assertEq('normal', theWindow.state);
     chrome.test.assertEq(width, theWindow.width);
     chrome.test.assertEq(height, theWindow.height);
   } else {
     chrome.test.assertEq('maximized', theWindow.state);
     chrome.test.assertTrue(width < theWindow.width ||
                            height < theWindow.height);
   }
 
+  width += deltaWidth;
+  height += deltaHeight;
   chrome.windows.update(theWindow.id,
-      {'state': 'normal', width: changedWidth, height: changedHeight},
+      {'state': 'normal', 'width': width, 'height': height},
       pass(checkRestoreWithBounds));
 }
 
 function checkRestored(theWindow) {
   chrome.test.assertEq('normal', theWindow.state);
   chrome.test.assertEq(width, theWindow.width);
   chrome.test.assertEq(height, theWindow.height);
 
   chrome.windows.update(theWindow.id, {'state': 'maximized'}, pass(checkMaximized));
 }
@@ skipping 21 matching lines @@
   function changeWindowState() {
     testWindowState('normal');
   },
   function changePopupWindowState() {
     testWindowState('popup');
   },
   function changePanelWindowState() {
     testWindowState('panel');
   }
 ]);