Deleted redundant SymmetricKey::GetRawKey().

chrome/browser/chromeos/login/easy_unlock/easy_unlock_create_keys_operation.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 "chrome/browser/chromeos/login/easy_unlock/easy_unlock_create_keys_operation.h"
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
@@ skipping 273 matching lines @@
     return;
   }
 
   EasyUnlockDeviceKeyData* device = &devices_[index];
   if (!encryptor.Encrypt(user_key, &device->wrapped_secret)) {
     PA_LOG(ERROR) << "Easy unlock failed to encrypt user key for key creation.";
     callback_.Run(false);
     return;
   }
 
-  std::string raw_session_key;
-  session_key->GetRawKey(&raw_session_key);
-
   challenge_creator_.reset(new ChallengeCreator(
-      user_key,
-      raw_session_key,
-      tpm_public_key_,
-      device,
+      user_key, session_key->key(), tpm_public_key_, device,
       base::Bind(&EasyUnlockCreateKeysOperation::OnChallengeCreated,
-                 weak_ptr_factory_.GetWeakPtr(),
-                 index)));
+                 weak_ptr_factory_.GetWeakPtr(), index)));
   challenge_creator_->Start();
 }
 
 void EasyUnlockCreateKeysOperation::OnChallengeCreated(size_t index,
                                                        bool success) {
   DCHECK_EQ(key_creation_index_, index);
 
   if (!success) {
     PA_LOG(ERROR) << "Easy unlock failed to create challenge for key creation.";
     callback_.Run(false);
@@ skipping 80 matching lines @@
       user_context_.GetKey()->GetLabel() ==
           EasyUnlockKeyManager::GetKeyLabel(key_creation_index_)) {
     user_context_.SetKey(user_key);
   }
 
   ++key_creation_index_;
   CreateKeyForDeviceAtIndex(key_creation_index_);
 }
 
 }  // namespace chromeos