Convert Pass()→std::move() for CrOS extension code.

chrome/browser/chromeos/extensions/users_private/users_private_apitest.cc

 // 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.
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/prefs/pref_service.h"
 #include "base/values.h"
@@ skipping 28 matching lines @@
         new api::settings_private::PrefObject());
     pref_object->key = name;
     pref_object->type = api::settings_private::PrefType::PREF_TYPE_LIST;
 
     base::ListValue* value = new base::ListValue();
     for (auto& email : whitelisted_users_) {
       value->AppendString(email);
     }
     pref_object->value.reset(value);
 
-    return pref_object.Pass();
+    return pref_object;
   }
 
   bool AppendToListCrosSetting(const std::string& pref_name,
                                const base::Value& value) override {
     std::string email;
     value.GetAsString(&email);
 
     for (auto& user : whitelisted_users_) {
       if (email == user)
         return false;
@@ skipping 98 matching lines @@
 IN_PROC_BROWSER_TEST_F(UsersPrivateApiTest, AddAndRemoveUsers) {
   EXPECT_TRUE(RunSubtest("addAndRemoveUsers")) << message_;
 }
 
 IN_PROC_BROWSER_TEST_F(UsersPrivateApiTest, IsOwner) {
   EXPECT_TRUE(RunSubtest("isOwner")) << message_;
 }
 #endif
 
 }  // namespace extensions