chromeos: Remove SystemSaltGetter::GetSystemSaltSync

chromeos/dbus/fake_cryptohome_client.h

 // Copyright 2013 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 CHROMEOS_DBUS_FAKE_CRYPTOHOME_CLIENT_H_
 #define CHROMEOS_DBUS_FAKE_CRYPTOHOME_CLIENT_H_
 
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 18 matching lines @@
   virtual bool Unmount(bool* success) OVERRIDE;
   virtual void AsyncCheckKey(const std::string& username,
                              const std::string& key,
                              const AsyncMethodCallback& callback) OVERRIDE;
   virtual void AsyncMigrateKey(const std::string& username,
                                const std::string& from_key,
                                const std::string& to_key,
                                const AsyncMethodCallback& callback) OVERRIDE;
   virtual void AsyncRemove(const std::string& username,
                            const AsyncMethodCallback& callback) OVERRIDE;
-  virtual bool GetSystemSalt(std::vector<uint8>* salt) OVERRIDE;
+  virtual void GetSystemSalt(const GetSystemSaltCallback& callback) OVERRIDE;
   virtual void GetSanitizedUsername(
       const std::string& username,
       const StringDBusMethodCallback& callback) OVERRIDE;
   virtual std::string BlockingGetSanitizedUsername(
       const std::string& username) OVERRIDE;
   virtual void AsyncMount(const std::string& username,
                           const std::string& key,
                           int flags,
                           const AsyncMethodCallback& callback) OVERRIDE;
   virtual void AsyncAddKey(const std::string& username,
@@ skipping 148 matching lines @@
   std::map<std::string, std::vector<uint8> > install_attrs_;
   bool locked_;
   base::WeakPtrFactory<FakeCryptohomeClient> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeCryptohomeClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_FAKE_CRYPTOHOME_CLIENT_H_