Handling case where automation server is NULL when creating the active doc wi...

chrome_frame/chrome_active_document.cc

 // Copyright (c) 2010 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.
 
 // Implementation of ChromeActiveDocument
 #include "chrome_frame/chrome_active_document.h"
 
 #include <hlink.h>
 #include <htiface.h>
 #include <initguid.h>
@@ skipping 501 matching lines @@
                                       in_place_ui_window.Receive(),
                                       &position_rect,
                                       &clip_rect,
                                       &frame_info_);
     if (!m_bWndLess) {
       if (IsWindow()) {
         ::ShowWindow(m_hWnd, SW_SHOW);
         SetFocus();
       } else {
         m_hWnd = Create(parent_window, position_rect, 0, 0, WS_EX_CLIENTEDGE);
+        if (!IsWindow()) {
+          // This might happen if the automation server couldn't be
+          // instantiated.  If so, a NOTREACHED() will have already been hit.
+          DLOG(ERROR) << "Failed to create Ax window";
+          return AtlHresultFromLastError();
+        }
       }
 
       ScopedComPtr<IWebBrowser2> web_browser2;
       DoQueryService(SID_SWebBrowserApp, m_spClientSite,
                      web_browser2.Receive());
       if (web_browser2) {
         if (!dimensions_.IsEmpty()) {
           web_browser2->put_Width(dimensions_.width());
           web_browser2->put_Height(dimensions_.height());
           web_browser2->put_Left(dimensions_.x());
@@ skipping 709 matching lines @@
                  shell_browser.Receive());
   DCHECK(shell_browser.get() != NULL);
   ScopedComPtr<ITridentService2> trident_services;
   trident_services.QueryFrom(shell_browser);
   if (trident_services)
     trident_services->FirePrivacyImpactedStateChange(wparam);
   else
     NOTREACHED() << "Failed to retrieve IWebBrowser2 interface.";
   return 0;
 }