Fix SpdySession::WriteCredentialFrame ECPrivateKey creation args.

crypto/ec_signature_creator.h

 // Copyright (c) 2012 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 CRYPTO_EC_SIGNATURE_CREATOR_H_
 #define CRYPTO_EC_SIGNATURE_CREATOR_H_
 #pragma once
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "crypto/crypto_export.h"
 
 namespace crypto {
 
 class ECPrivateKey;
+class ECSignatureCreator;
+
+class CRYPTO_EXPORT ECSignatureCreatorFactory {
+ public:
+  virtual ~ECSignatureCreatorFactory() {}
+
+  virtual ECSignatureCreator* Create(ECPrivateKey* key) = 0;
+};
 
 // Signs data using a bare private key (as opposed to a full certificate).
 // We need this class because SignatureCreator is hardcoded to use
 // RSAPrivateKey.
 class CRYPTO_EXPORT ECSignatureCreator {
  public:
-  ~ECSignatureCreator();
+  virtual ~ECSignatureCreator() {}
 
   // Create an instance. The caller must ensure that the provided PrivateKey
   // instance outlives the created ECSignatureCreator.
   // TODO(rch):  This is currently hard coded to use SHA1. Ideally, we should
   // pass in the hash algorithm identifier.
   static ECSignatureCreator* Create(ECPrivateKey* key);
 
+  // Set a factory to make the Create function return non-standard
+  // ECSignatureCreator objects.  Because the ECDSA algorithm involves
+  // randomness, this is useful for higher-level tests that want to have
+  // deterministic mocked output to compare.
+  static void SetFactoryForTesting(ECSignatureCreatorFactory* factory);
+
   // Signs |data_len| bytes from |data| and writes the results into
   // |signature| as a DER encoded ECDSA-Sig-Value from RFC 3279.
   //
   //  ECDSA-Sig-Value ::= SEQUENCE {
   //    r     INTEGER,
   //    s     INTEGER }
-  bool Sign(const uint8* data,
-            int data_len,
-            std::vector<uint8>* signature);
-
- private:
-  // Private constructor. Use the Create() method instead.
-  explicit ECSignatureCreator(ECPrivateKey* key);
-
-  ECPrivateKey* key_;
-
-  DISALLOW_COPY_AND_ASSIGN(ECSignatureCreator);
+  virtual bool Sign(const uint8* data,
+                    int data_len,
+                    std::vector<uint8>* signature) = 0;
 };
 
 }  // namespace crypto
 
 #endif  // CRYPTO_EC_SIGNATURE_CREATOR_H_