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

chrome/browser/autocomplete/extension_app_provider.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/autocomplete/extension_app_provider.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/strings/string16.h"
@@ skipping 137 matching lines @@
 void ExtensionAppProvider::RefreshAppList() {
   ExtensionService* extension_service =
       extensions::ExtensionSystemFactory::GetForProfile(profile_)->
       extension_service();
   if (!extension_service)
     return;  // During testing, there is no extension service.
   const ExtensionSet* extensions = extension_service->extensions();
   extension_apps_.clear();
   for (ExtensionSet::const_iterator iter = extensions->begin();
        iter != extensions->end(); ++iter) {
-    const extensions::Extension* app = *iter;
+    const extensions::Extension* app = iter->get();
     if (!app->ShouldDisplayInAppLauncher())
       continue;
     // Note: Apps that appear in the NTP only are not added here since this
     // provider is currently only used in the app launcher.
 
     if (profile_->IsOffTheRecord() &&
         !extension_service->CanLoadInIncognito(app))
       continue;
 
     GURL launch_url = app->is_platform_app() ?
@@ skipping 47 matching lines @@
     history::URLRow info;
     url_db->GetRowForURL(url, &info);
     type_count_boost =
         400 * (1.0 - (std::pow(static_cast<double>(2), -info.typed_count())));
   }
   int relevance = 575 + static_cast<int>(type_count_boost) +
                         static_cast<int>(fraction_boost);
   DCHECK_LE(relevance, kMaxRelevance);
   return relevance;
 }