[blink] Unique pointers in Platform.h

third_party/WebKit/Source/modules/storage/StorageNamespace.cpp

 /*
  * Copyright (C) 2009 Google Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 26 matching lines @@
 namespace blink {
 
 StorageNamespace::StorageNamespace(
     std::unique_ptr<WebStorageNamespace> web_storage_namespace)
     : web_storage_namespace_(std::move(web_storage_namespace)) {}
 
 StorageNamespace::~StorageNamespace() {}
 
 StorageArea* StorageNamespace::LocalStorageArea(SecurityOrigin* origin) {
   DCHECK(IsMainThread());
-  static WebStorageNamespace* local_storage_namespace = nullptr;
+  static std::unique_ptr<WebStorageNamespace> local_storage_namespace = nullptr;
   if (!local_storage_namespace)
     local_storage_namespace =
         Platform::Current()->CreateLocalStorageNamespace();
   return StorageArea::Create(
       WTF::WrapUnique(local_storage_namespace->CreateStorageArea(
           WebSecurityOrigin(origin))),
       kLocalStorage);
 }
 
 StorageArea* StorageNamespace::GetStorageArea(SecurityOrigin* origin) {
   return StorageArea::Create(
       WTF::WrapUnique(
           web_storage_namespace_->CreateStorageArea(WebSecurityOrigin(origin))),
       kSessionStorage);
 }
 
 bool StorageNamespace::IsSameNamespace(
     const WebStorageNamespace& session_namespace) const {
   return web_storage_namespace_ &&
          web_storage_namespace_->IsSameNamespace(session_namespace);
 }
 
 }  // namespace blink