1 files changed, 0 insertions, 87 deletions
diff --git a/chromium/storage/browser/quota/padding_key.cc b/chromium/storage/browser/quota/padding_key.cc
deleted file mode 100644
index 788f6f4634c..00000000000
--- a/chromium/storage/browser/quota/padding_key.cc
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright 2019 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 "storage/browser/quota/padding_key.h"
-
-#include <cstdint>
-#include <vector>
-
-#include "base/no_destructor.h"
-#include "crypto/hmac.h"
-#include "net/http/http_request_headers.h"
-
-using crypto::SymmetricKey;
-
-namespace storage {
-
-namespace {
-
-const SymmetricKey::Algorithm kPaddingKeyAlgorithm = SymmetricKey::AES;
-
-// The range of the padding added to response sizes for opaque resources.
-// Increment the CacheStorage padding version if changed.
-constexpr uint64_t kPaddingRange = 14431 * 1024;
-
-std::unique_ptr<SymmetricKey>* GetPaddingKeyInternal() {
-  static base::NoDestructor<std::unique_ptr<SymmetricKey>> s_padding_key([] {
-    return SymmetricKey::GenerateRandomKey(kPaddingKeyAlgorithm, 128);
-  }());
-  return s_padding_key.get();
-}
-
-}  // namespace
-
-const SymmetricKey* GetDefaultPaddingKey() {
-  return GetPaddingKeyInternal()->get();
-}
-
-std::unique_ptr<SymmetricKey> CopyDefaultPaddingKey() {
-  return SymmetricKey::Import(kPaddingKeyAlgorithm,
-                              (*GetPaddingKeyInternal())->key());
-}
-
-std::unique_ptr<SymmetricKey> DeserializePaddingKey(
-    const std::string& raw_key) {
-  return SymmetricKey::Import(kPaddingKeyAlgorithm, raw_key);
-}
-
-std::string SerializeDefaultPaddingKey() {
-  return (*GetPaddingKeyInternal())->key();
-}
-
-void ResetPaddingKeyForTesting() {
-  *GetPaddingKeyInternal() =
-      SymmetricKey::GenerateRandomKey(kPaddingKeyAlgorithm, 128);
-}
-
-int64_t ComputeResponsePadding(const std::string& response_url,
-                               const crypto::SymmetricKey* padding_key,
-                               bool has_metadata,
-                               bool loaded_with_credentials,
-                               const std::string& request_method) {
-  DCHECK(!response_url.empty());
-
-  crypto::HMAC hmac(crypto::HMAC::SHA256);
-  CHECK(hmac.Init(padding_key));
-
-  std::string key = response_url;
-  if (has_metadata)
-    key += "METADATA";
-  if (loaded_with_credentials)
-    key += "CREDENTIALED";
-
-  // It should only be possible to have a CORS safelisted method here since
-  // the spec does not permit other methods for no-cors requests.
-  DCHECK(request_method == net::HttpRequestHeaders::kGetMethod ||
-         request_method == net::HttpRequestHeaders::kHeadMethod ||
-         request_method == net::HttpRequestHeaders::kPostMethod);
-  key += request_method;
-
-  uint64_t digest_start;
-  CHECK(hmac.Sign(key, reinterpret_cast<uint8_t*>(&digest_start),
-                  sizeof(digest_start)));
-  return digest_start % kPaddingRange;
-}
-
-}  // namespace storage