Change the copyright from Chromium OS to Chromium.

ui/file_manager/zip_archiver/unpacker-test/js/passphrase_manager_test.js

-// Copyright 2015 The Chromium OS Authors. All rights reserved.
+// Copyright 2015 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.
 
 'use strict';
 
 describe('PassphraseManager', function() {
   var passphraseWindow = null;
   var passphraseWindowLoadCallback = null;
 
   beforeEach(function() {
@@ skipping 138 matching lines @@
           passphraseManager.getPassphrase().then(
               test_utils.forceFailure,
               function(error) {
                 expect(error).to.equal('FAILED');
                 expect(passphraseManager.rememberedPassphrase).to.be.null;
                 done();
               });
         });
   });
 });