Prepare to abstract PersistedData by making it part of the configurator.

components/update_client/update_checker_unittest.cc

 // Copyright 2014 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/update_client/update_checker.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 81 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(UpdateCheckerTest);
 };
 
 UpdateCheckerTest::UpdateCheckerTest() : scoped_task_scheduler_(&loop_) {}
 
 UpdateCheckerTest::~UpdateCheckerTest() {
 }
 
 void UpdateCheckerTest::SetUp() {
+  pref_ = base::MakeUnique<TestingPrefServiceSimple>();
   config_ = base::MakeRefCounted<TestConfigurator>(
       base::ThreadTaskRunnerHandle::Get(), base::ThreadTaskRunnerHandle::Get());
-  pref_ = base::MakeUnique<TestingPrefServiceSimple>();
   PersistedData::RegisterPrefs(pref_->registry());
   metadata_ = base::MakeUnique<PersistedData>(pref_.get());
   interceptor_factory_ =
       base::MakeUnique<InterceptorFactory>(base::ThreadTaskRunnerHandle::Get());
   post_interceptor_ = interceptor_factory_->CreateInterceptor();
   EXPECT_TRUE(post_interceptor_);
 
   update_checker_ = nullptr;
 
   error_ = 0;
@@ skipping 444 matching lines @@
   EXPECT_EQ(1, post_interceptor_->GetHitCount())
       << post_interceptor_->GetRequestsAsString();
   ASSERT_EQ(1, post_interceptor_->GetCount())
       << post_interceptor_->GetRequestsAsString();
 
   EXPECT_EQ(0, error_);
   EXPECT_STREQ("this", component->action_run_.c_str());
 }
 
 }  // namespace update_client