Standardize usage of virtual/override/final in content/

content/child/webcrypto/openssl/hmac_openssl.cc

 // 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 <openssl/hmac.h>
 
 #include "base/logging.h"
 #include "base/numerics/safe_math.h"
 #include "base/stl_util.h"
 #include "content/child/webcrypto/algorithm_implementation.h"
@@ skipping 52 matching lines @@
   if (!success || hmac_actual_length != hmac_expected_length)
     return Status::OperationError();
 
   return Status::Success();
 }
 
 class HmacImplementation : public AlgorithmImplementation {
  public:
   HmacImplementation() {}
 
-  virtual Status GenerateKey(const blink::WebCryptoAlgorithm& algorithm,
-                             bool extractable,
-                             blink::WebCryptoKeyUsageMask usage_mask,
-                             GenerateKeyResult* result) const override {
+  Status GenerateKey(const blink::WebCryptoAlgorithm& algorithm,
+                     bool extractable,
+                     blink::WebCryptoKeyUsageMask usage_mask,
+                     GenerateKeyResult* result) const override {
     Status status = CheckKeyCreationUsages(kAllKeyUsages, usage_mask);
     if (status.IsError())
       return status;
 
     const blink::WebCryptoHmacKeyGenParams* params =
         algorithm.hmacKeyGenParams();
 
     unsigned int keylen_bits = 0;
     status = GetHmacKeyGenLengthInBits(params, &keylen_bits);
     if (status.IsError())
       return status;
 
     return GenerateSecretKeyOpenSsl(blink::WebCryptoKeyAlgorithm::createHmac(
                                         params->hash().id(), keylen_bits),
                                     extractable,
                                     usage_mask,
                                     keylen_bits / 8,
                                     result);
   }
 
-  virtual Status VerifyKeyUsagesBeforeImportKey(
+  Status VerifyKeyUsagesBeforeImportKey(
       blink::WebCryptoKeyFormat format,
       blink::WebCryptoKeyUsageMask usage_mask) const override {
     switch (format) {
       case blink::WebCryptoKeyFormatRaw:
       case blink::WebCryptoKeyFormatJwk:
         return CheckKeyCreationUsages(kAllKeyUsages, usage_mask);
       default:
         return Status::ErrorUnsupportedImportKeyFormat();
     }
   }
 
-  virtual Status ImportKeyRaw(const CryptoData& key_data,
-                              const blink::WebCryptoAlgorithm& algorithm,
-                              bool extractable,
-                              blink::WebCryptoKeyUsageMask usage_mask,
-                              blink::WebCryptoKey* key) const override {
+  Status ImportKeyRaw(const CryptoData& key_data,
+                      const blink::WebCryptoAlgorithm& algorithm,
+                      bool extractable,
+                      blink::WebCryptoKeyUsageMask usage_mask,
+                      blink::WebCryptoKey* key) const override {
     const blink::WebCryptoAlgorithm& hash =
         algorithm.hmacImportParams()->hash();
 
     base::CheckedNumeric<unsigned int> keylen_bits(key_data.byte_length());
     keylen_bits *= 8;
 
     if (!keylen_bits.IsValid())
       return Status::ErrorDataTooLarge();
 
     return ImportKeyRawOpenSsl(key_data,
                                blink::WebCryptoKeyAlgorithm::createHmac(
                                    hash.id(), keylen_bits.ValueOrDie()),
                                extractable,
                                usage_mask,
                                key);
   }
 
-  virtual Status ImportKeyJwk(const CryptoData& key_data,
-                              const blink::WebCryptoAlgorithm& algorithm,
-                              bool extractable,
-                              blink::WebCryptoKeyUsageMask usage_mask,
-                              blink::WebCryptoKey* key) const override {
+  Status ImportKeyJwk(const CryptoData& key_data,
+                      const blink::WebCryptoAlgorithm& algorithm,
+                      bool extractable,
+                      blink::WebCryptoKeyUsageMask usage_mask,
+                      blink::WebCryptoKey* key) const override {
     const char* algorithm_name =
         GetJwkHmacAlgorithmName(algorithm.hmacImportParams()->hash().id());
     if (!algorithm_name)
       return Status::ErrorUnexpected();
 
     std::vector<uint8_t> raw_data;
     Status status = ReadSecretKeyJwk(
         key_data, algorithm_name, extractable, usage_mask, &raw_data);
     if (status.IsError())
       return status;
 
     return ImportKeyRaw(
         CryptoData(raw_data), algorithm, extractable, usage_mask, key);
   }
 
-  virtual Status ExportKeyRaw(const blink::WebCryptoKey& key,
-                              std::vector<uint8_t>* buffer) const override {
+  Status ExportKeyRaw(const blink::WebCryptoKey& key,
+                      std::vector<uint8_t>* buffer) const override {
     *buffer = SymKeyOpenSsl::Cast(key)->raw_key_data();
     return Status::Success();
   }
 
-  virtual Status ExportKeyJwk(const blink::WebCryptoKey& key,
-                              std::vector<uint8_t>* buffer) const override {
+  Status ExportKeyJwk(const blink::WebCryptoKey& key,
+                      std::vector<uint8_t>* buffer) const override {
     SymKeyOpenSsl* sym_key = SymKeyOpenSsl::Cast(key);
     const std::vector<uint8_t>& raw_data = sym_key->raw_key_data();
 
     const char* algorithm_name =
         GetJwkHmacAlgorithmName(key.algorithm().hmacParams()->hash().id());
     if (!algorithm_name)
       return Status::ErrorUnexpected();
 
     WriteSecretKeyJwk(CryptoData(raw_data),
                       algorithm_name,
                       key.extractable(),
                       key.usages(),
                       buffer);
 
     return Status::Success();
   }
 
-  virtual Status Sign(const blink::WebCryptoAlgorithm& algorithm,
-                      const blink::WebCryptoKey& key,
-                      const CryptoData& data,
-                      std::vector<uint8_t>* buffer) const override {
+  Status Sign(const blink::WebCryptoAlgorithm& algorithm,
+              const blink::WebCryptoKey& key,
+              const CryptoData& data,
+              std::vector<uint8_t>* buffer) const override {
     const blink::WebCryptoAlgorithm& hash =
         key.algorithm().hmacParams()->hash();
 
     return SignHmac(
         SymKeyOpenSsl::Cast(key)->raw_key_data(), hash, data, buffer);
   }
 
-  virtual Status Verify(const blink::WebCryptoAlgorithm& algorithm,
-                        const blink::WebCryptoKey& key,
-                        const CryptoData& signature,
-                        const CryptoData& data,
-                        bool* signature_match) const override {
+  Status Verify(const blink::WebCryptoAlgorithm& algorithm,
+                const blink::WebCryptoKey& key,
+                const CryptoData& signature,
+                const CryptoData& data,
+                bool* signature_match) const override {
     std::vector<uint8_t> result;
     Status status = Sign(algorithm, key, data, &result);
 
     if (status.IsError())
       return status;
 
     // Do not allow verification of truncated MACs.
     *signature_match = result.size() == signature.byte_length() &&
                        crypto::SecureMemEqual(vector_as_array(&result),
                                               signature.bytes(),
                                               signature.byte_length());
 
     return Status::Success();
   }
 };
 
 }  // namespace
 
 AlgorithmImplementation* CreatePlatformHmacImplementation() {
   return new HmacImplementation;
 }
 
 }  // namespace webcrypto
 
 }  // namespace content