Make base::Base64Encode() return void

chrome/browser/extensions/install_signer.cc

 // 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.
 
 #include "chrome/browser/extensions/install_signer.h"
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 97 matching lines @@
 
   scoped_ptr<crypto::SecureHash> hash(
       crypto::SecureHash::Create(crypto::SecureHash::SHA256));
 
   hash->Update(machine_id.data(), machine_id.size());
   hash->Update(salt.data(), salt.size());
 
   std::string result_bytes(crypto::kSHA256Length, 0);
   hash->Finish(string_as_array(&result_bytes), result_bytes.size());
 
-  return base::Base64Encode(result_bytes, result);
+  base::Base64Encode(result_bytes, result);
+  return true;
 }
 
 }  // namespace
 
 namespace extensions {
 
 InstallSignature::InstallSignature() {
 }
 InstallSignature::~InstallSignature() {
 }
@@ skipping 154 matching lines @@
     result->expire_date = expire_date;
     DCHECK(VerifySignature(*result));
   }
 
   if (!callback_.is_null())
     callback_.Run(result.Pass());
 }
 
 
 }  // namespace extensions