Refactor HostContentSettingsMap::SetWebsiteSettingDefaultScope to take a std::unique_ptr.

chrome/browser/permissions/chooser_context_base.cc

 // Copyright 2015 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/permissions/chooser_context_base.h"
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/content_settings/host_content_settings_map_factory.h"
@@ skipping 135 matching lines @@
     value.reset(new base::DictionaryValue());
 
   return value;
 }
 
 void ChooserContextBase::SetWebsiteSetting(const GURL& requesting_origin,
                                            const GURL& embedding_origin,
                                            std::unique_ptr<base::Value> value) {
   host_content_settings_map_->SetWebsiteSettingDefaultScope(
       requesting_origin, embedding_origin, data_content_settings_type_,
-      std::string(), value.release());
+      std::string(), std::move(value));
 }