| // Copyright 2017 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. |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_STYLE_MEMBER_COPY_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_STYLE_MEMBER_COPY_H_ |
| |
| #include <memory> |
| #include "base/memory/scoped_refptr.h" |
| #include "third_party/blink/renderer/core/style/content_data.h" |
| #include "third_party/blink/renderer/core/style/data_ref.h" |
| #include "third_party/blink/renderer/core/style/style_filter_data.h" |
| #include "third_party/blink/renderer/platform/heap/persistent.h" |
| |
| namespace blink { |
| |
| template <typename T> |
| scoped_refptr<T> MemberCopy(const scoped_refptr<T>& v) { |
| return v; |
| } |
| |
| template <typename T> |
| Persistent<T> MemberCopy(const Persistent<T>& v) { |
| return v; |
| } |
| |
| template <typename T> |
| std::unique_ptr<T> MemberCopy(const std::unique_ptr<T>& v) { |
| return v ? v->Clone() : nullptr; |
| } |
| |
| inline Persistent<ContentData> MemberCopy(const Persistent<ContentData>& v) { |
| return v ? v->Clone() : nullptr; |
| } |
| |
| inline Persistent<StyleFilterData> MemberCopy( |
| const Persistent<StyleFilterData>& v) { |
| return v->Copy(); |
| } |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_STYLE_MEMBER_COPY_H_ |