Deleted redundant SymmetricKey::GetRawKey().

components/sync/base/cryptographer.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 "components/sync/base/cryptographer.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <utility>
@@ skipping 330 matching lines @@
   return default_nigori_name_;
 }
 
 std::string Cryptographer::GetDefaultNigoriKeyData() const {
   if (!is_initialized())
     return std::string();
   NigoriMap::const_iterator iter = nigoris_.find(default_nigori_name_);
   if (iter == nigoris_.end())
     return std::string();
   sync_pb::NigoriKey key;
-  if (!iter->second->ExportKeys(key.mutable_user_key(),
-                                key.mutable_encryption_key(),
-                                key.mutable_mac_key()))
-    return std::string();
+  iter->second->ExportKeys(key.mutable_user_key(), key.mutable_encryption_key(),
+                           key.mutable_mac_key());
   return key.SerializeAsString();
 }
 
 bool Cryptographer::ImportNigoriKey(const std::string& serialized_nigori_key) {
   if (serialized_nigori_key.empty())
     return false;
 
   sync_pb::NigoriKey key;
   if (!key.ParseFromString(serialized_nigori_key))
     return false;
 
   std::unique_ptr<Nigori> nigori(new Nigori);
   if (!nigori->InitByImport(key.user_key(), key.encryption_key(),
                             key.mac_key())) {
     NOTREACHED();
     return false;
   }
 
   if (!AddKeyImpl(std::move(nigori), true))
     return false;
   return true;
 }
 
 }  // namespace syncer