Move PrefRegistrySimple to use unique_ptr<Value>

components/bookmarks/browser/bookmark_expanded_state_tracker_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/bookmarks/browser/bookmark_expanded_state_tracker.h"
 
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 26 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(BookmarkExpandedStateTrackerTest);
 };
 
 BookmarkExpandedStateTrackerTest::BookmarkExpandedStateTrackerTest() {}
 
 BookmarkExpandedStateTrackerTest::~BookmarkExpandedStateTrackerTest() {}
 
 void BookmarkExpandedStateTrackerTest::SetUp() {
   prefs_.registry()->RegisterListPref(prefs::kBookmarkEditorExpandedNodes,
-                                      new base::ListValue);
+                                      base::MakeUnique<base::ListValue>());
   prefs_.registry()->RegisterListPref(prefs::kManagedBookmarks);
   model_.reset(new BookmarkModel(base::MakeUnique<TestBookmarkClient>()));
   model_->Load(&prefs_, base::FilePath(),
                base::ThreadTaskRunnerHandle::Get(),
                base::ThreadTaskRunnerHandle::Get());
   test::WaitForBookmarkModelToLoad(model_.get());
 }
 
 void BookmarkExpandedStateTrackerTest::TearDown() {
   model_.reset();
@@ skipping 37 matching lines @@
   tracker->SetExpandedNodes(nodes);
   // Verify that the node is present.
   EXPECT_EQ(nodes, tracker->GetExpandedNodes());
   // Call remove all.
   model_->RemoveAllUserBookmarks();
   // Verify node is not present.
   EXPECT_TRUE(tracker->GetExpandedNodes().empty());
 }
 
 }  // namespace bookmarks