Fix compile break on official Windows builder from disabling scoped_refptr<T> conversions.

chrome/browser/ui/webui/help/version_updater_win.cc

 // 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.
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "base/version.h"
 #include "base/win/win_util.h"
@@ skipping 166 matching lines @@
   switch (result) {
     case UPGRADE_CHECK_STARTED: {
       status = CHECKING;
       break;
     }
     case UPGRADE_STARTED: {
       status = UPDATING;
       break;
     }
     case UPGRADE_IS_AVAILABLE: {
-      DCHECK(!google_updater_);  // Should have been nulled out already.
+      DCHECK(!google_updater_.get());  // Should have been nulled out already.
       CreateGoogleUpdater();
       UpdateStatus(UPGRADE_STARTED, GOOGLE_UPDATE_NO_ERROR, base::string16());
       // Specify true to upgrade now.
       google_updater_->CheckForUpdate(true, GetElevationParent());
       return;
     }
     case UPGRADE_ALREADY_UP_TO_DATE: {
       // Google Update reported that Chrome is up-to-date.
       // To confirm the updated version is running, the reading
       // must be done on the file thread. The rest of this case
@@ skipping 90 matching lines @@
                          << GetCurrentThreadId();
 #endif
   return window;
 }
 
 }  // namespace
 
 VersionUpdater* VersionUpdater::Create(content::BrowserContext* /* context */) {
   return new VersionUpdaterWin;
 }