Call scoped_refptr<T>::get() rather than relying on implicit "operator T*"

chrome/browser/ui/toolbar/action_box_button_controller.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 "chrome/browser/ui/toolbar/action_box_button_controller.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
@@ skipping 69 matching lines @@
         rb.GetNativeImageNamed(IDR_MOBILE));
   }
 
   ExtensionService* extension_service =
       extensions::ExtensionSystem::Get(browser_->profile())->
           extension_service();
   if (extension_service) {
     const ExtensionSet* extensions = extension_service->extensions();
     for (ExtensionSet::const_iterator it = extensions->begin();
          it != extensions->end(); ++it) {
-      const extensions::Extension* extension = *it;
+      const extensions::Extension* extension = it->get();
       if (ActionInfo::GetPageLauncherInfo(extension)) {
         int command_id = GetCommandIdForExtension(*extension);
         menu_model->AddExtension(*extension, command_id);
       }
     }
   }
   return menu_model.Pass();
 }
 
 void ActionBoxButtonController::OnButtonClicked() {
@@ skipping 84 matching lines @@
   for (ExtensionIdCommandMap::iterator it = extension_command_ids_.begin();
        it != extension_command_ids_.end();) {
     if (it->second== extension->id())
       extension_command_ids_.erase(it++);
     else
       ++it;
   }
   // TODO(kalman): if there's a menu open, remove it from that too.
   // We may also want to listen to EXTENSION_LOADED to do the opposite.
 }