Remove depprecated methods in AppleKeychain.

crypto/mock_apple_keychain.cc

 // 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.
 
 #include "crypto/mock_apple_keychain.h"
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/time/time.h"
@@ skipping 54 matching lines @@
     const char* accountName,
     UInt32 passwordLength,
     const void* passwordData,
     SecKeychainItemRef* itemRef) const {
   IncrementKeychainAccessHistogram();
 
   called_add_generic_ = true;
 
   DCHECK_GT(passwordLength, 0U);
   DCHECK(passwordData);
-  add_generic_password_ =
-      std::string(const_cast<char*>(static_cast<const char*>(passwordData)),
-                  passwordLength);
   return noErr;
 }
 
 std::string MockAppleKeychain::GetEncryptionPassword() const {
   IncrementKeychainAccessHistogram();
   return "mock_password";
 }
 
 }  // namespace crypto