Fix browser crash when refreshing extensions....

chrome/browser/browser.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.
 
 #include "chrome/browser/browser.h"
 
 #if defined(OS_WIN)
 #include <shellapi.h>
 #include <windows.h>
 #endif  // OS_WIN
@@ skipping 2887 matching lines @@
         break;
       ExtensionsService* extensions_service =
           Source<Profile>(source).ptr()->GetExtensionsService();
       ExtensionHost* extension_host = Details<ExtensionHost>(details).ptr();
       tab_contents->AddInfoBar(new CrashedExtensionInfoBarDelegate(
           tab_contents, extensions_service, extension_host->extension()));
       break;
     }
 
     case NotificationType::EXTENSION_LOADED: {
+      window()->GetLocationBar()->UpdatePageActions();
+
       // If any "This extension has crashed" InfoBarDelegates are around for
       // this extension, it means that it has been reloaded in another window
       // so just remove the remaining CrashedExtensionInfoBarDelegate objects.
       TabContents* tab_contents = GetSelectedTabContents();
       if (!tab_contents)
         break;
       Extension* extension = Details<Extension>(details).ptr();
       CrashedExtensionInfoBarDelegate* delegate = NULL;
       for (int i = 0; i < tab_contents->infobar_delegate_count();) {
         delegate = tab_contents->GetInfoBarDelegateAt(i)->
@@ skipping 942 matching lines @@
   if (TabHasUnloadListener(contents)) {
     // If the page has unload listeners, then we tell the renderer to fire
     // them. Once they have fired, we'll get a message back saying whether
     // to proceed closing the page or not, which sends us back to this method
     // with the HasUnloadListener bit cleared.
     contents->render_view_host()->FirePageBeforeUnload(false);
     return true;
   }
   return false;
 }