html_viewer: Move webcrypto to a place where html_viewer can use it.

content/child/webcrypto/openssl/aes_kw_openssl.cc

Index: content/child/webcrypto/openssl/aes_kw_openssl.cc
diff --git a/content/child/webcrypto/openssl/aes_kw_openssl.cc b/content/child/webcrypto/openssl/aes_kw_openssl.cc
deleted file mode 100644
index 247ba0058aeb82b396c7b2bed2180ea59ca9ed38..0000000000000000000000000000000000000000
--- a/content/child/webcrypto/openssl/aes_kw_openssl.cc
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright 2014 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 <vector>
-#include <openssl/evp.h>
-
-#include "base/logging.h"
-#include "base/numerics/safe_math.h"
-#include "base/stl_util.h"
-#include "content/child/webcrypto/crypto_data.h"
-#include "content/child/webcrypto/openssl/aes_algorithm_openssl.h"
-#include "content/child/webcrypto/openssl/key_openssl.h"
-#include "content/child/webcrypto/openssl/util_openssl.h"
-#include "content/child/webcrypto/status.h"
-#include "crypto/openssl_util.h"
-#include "crypto/scoped_openssl_types.h"
-
-namespace content {
-
-namespace webcrypto {
-
-namespace {
-
-const EVP_AEAD* GetAesKwAlgorithmFromKeySize(unsigned int key_size_bytes) {
-  switch (key_size_bytes) {
-    case 16:
-      return EVP_aead_aes_128_key_wrap();
-    case 32:
-      return EVP_aead_aes_256_key_wrap();
-    default:
-      return NULL;
-  }
-}
-
-Status AesKwEncryptDecrypt(EncryptOrDecrypt mode,
-                           const blink::WebCryptoAlgorithm& algorithm,
-                           const blink::WebCryptoKey& key,
-                           const CryptoData& data,
-                           std::vector<uint8_t>* buffer) {
-  // These length checks are done so the returned error matches that of NSS
-  // implementation. Other than giving a more specific error, these are not
-  // required.
-  if ((mode == ENCRYPT && data.byte_length() < 16) ||
-      (mode == DECRYPT && data.byte_length() < 24)) {
-    return Status::ErrorDataTooSmall();
-  }
-  if (data.byte_length() % 8)
-    return Status::ErrorInvalidAesKwDataLength();
-
-  const std::vector<uint8_t>& raw_key =
-      SymKeyOpenSsl::Cast(key)->raw_key_data();
-
-  return AeadEncryptDecrypt(mode, raw_key, data,
-                            8,             // tag_length_bytes
-                            CryptoData(),  // iv
-                            CryptoData(),  // additional_data
-                            GetAesKwAlgorithmFromKeySize(raw_key.size()),
-                            buffer);
-}
-
-class AesKwImplementation : public AesAlgorithm {
- public:
-  AesKwImplementation()
-      : AesAlgorithm(
-            blink::WebCryptoKeyUsageWrapKey | blink::WebCryptoKeyUsageUnwrapKey,
-            "KW") {}
-
-  Status Encrypt(const blink::WebCryptoAlgorithm& algorithm,
-                 const blink::WebCryptoKey& key,
-                 const CryptoData& data,
-                 std::vector<uint8_t>* buffer) const override {
-    return AesKwEncryptDecrypt(ENCRYPT, algorithm, key, data, buffer);
-  }
-
-  Status Decrypt(const blink::WebCryptoAlgorithm& algorithm,
-                 const blink::WebCryptoKey& key,
-                 const CryptoData& data,
-                 std::vector<uint8_t>* buffer) const override {
-    return AesKwEncryptDecrypt(DECRYPT, algorithm, key, data, buffer);
-  }
-};
-
-}  // namespace
-
-AlgorithmImplementation* CreatePlatformAesKwImplementation() {
-  return new AesKwImplementation;
-}
-
-}  // namespace webcrypto
-
-}  // namespace content