File: unguessable_token_android.h

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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef BASE_ANDROID_UNGUESSABLE_TOKEN_ANDROID_H_
#define BASE_ANDROID_UNGUESSABLE_TOKEN_ANDROID_H_

#include <jni.h>

#include "base/android/scoped_java_ref.h"
#include "base/base_export.h"
#include "base/unguessable_token.h"

namespace base {
namespace android {

class BASE_EXPORT UnguessableTokenAndroid {
 public:
  // Create a Java UnguessableToken with the same value as |token|.
  static ScopedJavaLocalRef<jobject> Create(
      JNIEnv* env,
      const base::UnguessableToken& token);

  // Create a native UnguessableToken from Java UnguessableToken |token|.
  static absl::optional<base::UnguessableToken> FromJavaUnguessableToken(
      JNIEnv* env,
      const JavaRef<jobject>& token);

  // Parcel UnguessableToken |token| and unparcel it, and return the result.
  // While this method is intended for facilitating unit tests, it results only
  // in a clone of |token|.
  static ScopedJavaLocalRef<jobject> ParcelAndUnparcelForTesting(
      JNIEnv* env,
      const JavaRef<jobject>& token);

  UnguessableTokenAndroid() = delete;
  UnguessableTokenAndroid(const UnguessableTokenAndroid&) = delete;
  UnguessableTokenAndroid& operator=(const UnguessableTokenAndroid&) = delete;
};

}  // namespace android
}  // namespace base

#endif  // BASE_ANDROID_UNGUESSABLE_TOKEN_ANDROID_H_