Revert 66646 - Add "open as window" menu item to NTP app menu....

chrome/browser/tab_contents/tab_contents.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/tab_contents/tab_contents.h"
 
 #include <cmath>
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
@@ skipping 580 matching lines @@
       NotificationType::TAB_CONTENTS_APPLICATION_EXTENSION_CHANGED,
       Source<TabContents>(this),
       NotificationService::NoDetails());
 }
 
 void TabContents::SetExtensionAppById(const std::string& extension_app_id) {
   if (extension_app_id.empty())
     return;
 
   ExtensionsService* extension_service = profile()->GetExtensionsService();
-  const Extension* extension =
-      extension_service->GetExtensionById(extension_app_id, false);
-  if (extension)
-    SetExtensionApp(extension);
+  if (extension_service && extension_service->is_ready()) {
+    const Extension* extension =
+        extension_service->GetExtensionById(extension_app_id, false);
+    if (extension)
+      SetExtensionApp(extension);
+  }
 }
 
 SkBitmap* TabContents::GetExtensionAppIcon() {
   if (extension_app_icon_.empty())
     return NULL;
 
   return &extension_app_icon_;
 }
 
 const GURL& TabContents::GetURL() const {
@@ skipping 2599 matching lines @@
 }
 
 void TabContents::set_encoding(const std::string& encoding) {
   encoding_ = CharacterEncoding::GetCanonicalEncodingNameByAliasName(encoding);
 }
 
 void TabContents::SetAppIcon(const SkBitmap& app_icon) {
   app_icon_ = app_icon;
   NotifyNavigationStateChanged(INVALIDATE_TITLE);
 }