Fix nested GuestView's container bounds calculation.

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 2704 matching lines @@
     webview.focus();
     webview.focus();
     embedder.test.assertTrue(document.activeElement = webview);
     embedder.test.assertTrue(webview.shadowRoot.activeElement);
     embedder.test.succeed();
   });
 
   document.body.appendChild(webview);
 }
 
+function testPDFInWebview() {
+  var webview = document.createElement('webview');
+  var pdfUrl = 'test.pdf';
+  // partition 'foobar' has access to local resource |pdfUrl|.
+  webview.partition = 'foobar';
+  webview.onloadstop = embedder.test.succeed;
+  webview.onloadabort = embedder.test.fail;
+  webview.setAttribute('src', pdfUrl);
+  document.body.appendChild(webview);
+}
+
 embedder.test.testList = {
   'testAllowTransparencyAttribute': testAllowTransparencyAttribute,
   'testAutosizeHeight': testAutosizeHeight,
   'testAutosizeAfterNavigation': testAutosizeAfterNavigation,
   'testAutosizeBeforeNavigation': testAutosizeBeforeNavigation,
   'testAutosizeRemoveAttributes': testAutosizeRemoveAttributes,
   'testAutosizeWithPartialAttributes': testAutosizeWithPartialAttributes,
   'testAPIMethodExistence': testAPIMethodExistence,
   'testChromeExtensionURL': testChromeExtensionURL,
   'testChromeExtensionRelativePath': testChromeExtensionRelativePath,
@@ skipping 80 matching lines @@
   'testFindAPI_findupdate': testFindAPI,
   'testLoadDataAPI': testLoadDataAPI,
   'testResizeEvents': testResizeEvents,
   'testPerOriginZoomMode': testPerOriginZoomMode,
   'testPerViewZoomMode': testPerViewZoomMode,
   'testDisabledZoomMode': testDisabledZoomMode,
   'testZoomBeforeNavigation': testZoomBeforeNavigation,
   'testPlugin': testPlugin,
   'testGarbageCollect': testGarbageCollect,
   'testCloseNewWindowCleanup': testCloseNewWindowCleanup,
-  'testFocusWhileFocused': testFocusWhileFocused
+  'testFocusWhileFocused': testFocusWhileFocused,
+  'testPDFInWebview': testPDFInWebview
 };
 
 onload = function() {
   chrome.test.getConfig(function(config) {
     embedder.setUp_(config);
     chrome.test.sendMessage("Launched");
   });
 };