<webview>: resizing with display:none set should resize on attachment

chrome/test/data/extensions/platform_apps/web_view/shim/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 util = {};
 var embedder = {};
 embedder.baseGuestURL = '';
 embedder.emptyGuestURL = '';
 embedder.windowOpenGuestURL = '';
 embedder.noReferrerGuestURL = '';
@@ skipping 1553 matching lines @@
       embedder.test.assertEq(300, height);
       embedder.test.succeed();
       return;
     }
     console.log('Unexpected message: \'' + data[0]  + '\'');
     embedder.test.fail();
   });
   document.body.appendChild(webview);
 }
 
+function testResizeWebviewWithDisplayNoneResizesContent() {
+  var webview = new WebView();
+  webview.src = 'about:blank';
+  var loadStopCalled = false;
+  webview.addEventListener('loadstop', function listener(e) {
+    if (loadStopCalled) {
+      window.console.log('webview is unexpectedly reloading.');
+      embedder.test.fail();
+      return;
+    }
+    loadStopCalled = true;
+    webview.executeScript(
+      {file: 'inject_resize_test.js'},
+      function(results) {
+        if (!results || !results.length) {
+          embedder.test.fail();
+          return;
+        }
+        window.console.log('The resize test has been injected into webview.');
+      }
+    );
+    webview.executeScript(
+      {file: 'inject_comm_channel.js'},
+      function(results) {
+        if (!results || !results.length) {
+          embedder.test.fail();
+          return;
+        }
+        window.console.log('The guest script for a two-way comm channel has ' +
+            'been injected into webview.');
+        // Establish a communication channel with the guest.
+        var msg = ['connect'];
+        webview.contentWindow.postMessage(JSON.stringify(msg), '*');
+      }
+    );
+  });
+  window.addEventListener('message', function(e) {
+    var data = JSON.parse(e.data);
+    if (data[0] == 'connected') {
+      console.log('A communication channel has been established with webview.');
+      console.log('Resizing <webview> width from 300px to 400px.');
+      webview.style.display = 'none';
+      window.setTimeout(function() {
+        webview.style.width = '400px';
+        window.setTimeout(function() {
+          webview.style.display = 'block';
+        }, 0);
+      }, 0);
+      return;
+    }
+    if (data[0] == 'resize') {
+      var width = data[1];
+      var height = data[2];
+      embedder.test.assertEq(400, width);
+      embedder.test.assertEq(300, height);
+      embedder.test.succeed();
+      return;
+    }
+    window.console.log('Unexpected message: \'' + data[0]  + '\'');
+    embedder.test.fail();
+  });
+  document.body.appendChild(webview);
+}
+
 function testPostMessageCommChannel() {
   var webview = new WebView();
   webview.src = 'about:blank';
   webview.addEventListener('loadstop', function(e) {
     webview.executeScript(
       {file: 'inject_comm_channel.js'},
       function(results) {
         window.console.log('The guest script for a two-way comm channel has ' +
             'been injected into webview.');
         // Establish a communication channel with the guest.
@@ skipping 342 matching lines @@
   'testLoadAbortIllegalJavaScriptURL': testLoadAbortIllegalJavaScriptURL,
   'testLoadAbortInvalidNavigation': testLoadAbortInvalidNavigation,
   'testLoadAbortNonWebSafeScheme': testLoadAbortNonWebSafeScheme,
   'testNavigateAfterResize': testNavigateAfterResize,
   'testNavigationToExternalProtocol': testNavigationToExternalProtocol,
   'testReload': testReload,
   'testReloadAfterTerminate': testReloadAfterTerminate,
   'testRemoveWebviewOnExit': testRemoveWebviewOnExit,
   'testRemoveWebviewAfterNavigation': testRemoveWebviewAfterNavigation,
   'testResizeWebviewResizesContent': testResizeWebviewResizesContent,
+  'testResizeWebviewWithDisplayNoneResizesContent':
+      testResizeWebviewWithDisplayNoneResizesContent,
   'testPostMessageCommChannel': testPostMessageCommChannel,
   'testScreenshotCapture' : testScreenshotCapture,
   'testZoomAPI' : testZoomAPI,
   'testFindAPI': testFindAPI,
   'testFindAPI_findupdate': testFindAPI,
   'testLoadDataAPI': testLoadDataAPI
 };
 
 onload = function() {
   chrome.test.getConfig(function(config) {
     embedder.setUp_(config);
     chrome.test.sendMessage("Launched");
   });
 };