Reject JWK key import when key_ops contains duplicate values.

content/child/webcrypto/status.h

 // 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.
 
 #ifndef CONTENT_CHILD_WEBCRYPTO_STATUS_H_
 #define CONTENT_CHILD_WEBCRYPTO_STATUS_H_
 
 #include <string>
 #include "content/common/content_export.h"
 #include "third_party/WebKit/public/platform/WebCrypto.h"
@@ skipping 93 matching lines @@
   static Status ErrorJwkIncorrectKeyLength();
 
   // The JWK property |property| is supposed to represent a big-endian unsigned
   // integer, however was the empty string.
   static Status ErrorJwkEmptyBigInteger(const std::string& property);
 
   // The big-endian unsigned integer |property| contained leading zeros. This
   // violates the JWA requirement that such octet strings be minimal.
   static Status ErrorJwkBigIntegerHasLeadingZero(const std::string& property);
 
+  // The key_ops lists a usage more than once.
+  static Status ErrorJwkDuplicateKeyOps();
+
   // ------------------------------------
   // Other errors
   // ------------------------------------
 
   // No key data was provided when importing an spki, pkcs8, or jwk formatted
   // key. This does not apply to raw format, since it is possible to have empty
   // key data there.
   static Status ErrorImportEmptyKeyData();
 
   // Tried importing a key using an unsupported format for the key type (for
@@ skipping 99 matching lines @@
   Type type_;
   blink::WebCryptoErrorType error_type_;
   std::string error_details_;
 };
 
 }  // namespace webcrypto
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_WEBCRYPTO_STATUS_H_