| // 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_PUBLIC_COMMON_MESSAGING_STRING_MESSAGE_CODEC_H_ |
| #define THIRD_PARTY_BLINK_PUBLIC_COMMON_MESSAGING_STRING_MESSAGE_CODEC_H_ |
| |
| #include <vector> |
| #include "base/containers/span.h" |
| #include "base/strings/string16.h" |
| #include "third_party/blink/public/common/common_export.h" |
| |
| namespace blink { |
| |
| // To support exposing HTML message ports to Java, it is necessary to be able |
| // to encode and decode message data using the same serialization format as V8. |
| // That format is an implementation detail of V8, but we cannot invoke V8 in |
| // the browser process. Rather than IPC over to the renderer process to execute |
| // the V8 serialization code, we duplicate some of the serialization logic |
| // (just for simple string messages) here. This is a trade-off between overall |
| // complexity / performance and code duplication. Fortunately, we only need to |
| // handle string messages and this serialization format is static, as it is a |
| // format we currently persist to disk via IndexedDB. |
| |
| BLINK_COMMON_EXPORT std::vector<uint8_t> EncodeStringMessage( |
| const base::string16& data); |
| |
| BLINK_COMMON_EXPORT bool DecodeStringMessage( |
| base::span<const uint8_t> encoded_data, |
| base::string16* result); |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_PUBLIC_COMMON_MESSAGING_STRING_MESSAGE_CODEC_H_ |
