[SyncFS] Use nullptr instead of NULL

chrome/browser/sync_file_system/drive_backend/drive_backend_sync_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 <algorithm>
 #include <stack>
 
 #include "base/files/file_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
@@ skipping 101 matching lines @@
 
     fake_drive_service_helper_.reset(new FakeDriveServiceHelper(
         drive_service.get(), uploader.get(),
         kSyncRootFolderTitle));
 
     remote_sync_service_.reset(
         new SyncEngine(base::ThreadTaskRunnerHandle::Get(),  // ui_task_runner
                        worker_task_runner_.get(),
                        drive_task_runner.get(),
                        base_dir_.path(),
-                       NULL,  // task_logger
-                       NULL,  // notification_manager
-                       NULL,  // extension_service
-                       NULL,  // signin_manager
-                       NULL,  // token_service
-                       NULL,  // request_context
+                       nullptr,  // task_logger
+                       nullptr,  // notification_manager
+                       nullptr,  // extension_service
+                       nullptr,  // signin_manager
+                       nullptr,  // token_service
+                       nullptr,  // request_context
                        scoped_ptr<SyncEngine::DriveServiceFactory>(),
                        in_memory_env_.get()));
     remote_sync_service_->AddServiceObserver(this);
     remote_sync_service_->InitializeForTesting(
         drive_service.PassAs<drive::DriveServiceInterface>(),
         uploader.Pass(),
         scoped_ptr<SyncWorkerInterface>());
     remote_sync_service_->SetSyncEnabled(true);
 
     local_sync_service_->SetLocalChangeProcessor(remote_sync_service_.get());
@@ skipping 1072 matching lines @@
   EXPECT_EQ(google_apis::HTTP_CREATED,
             fake_drive_service_helper()->AddFolder(
                 app_root_folder_id,
                 "conflict_to_pending_remote", &file_id));
 
   FetchRemoteChanges();
 
   EXPECT_EQ(google_apis::HTTP_CREATED,
             fake_drive_service_helper()->AddFolder(
                 app_root_folder_id,
-                "conflict_to_existing_remote", NULL));
+                "conflict_to_existing_remote", nullptr));
 
   EXPECT_EQ(SYNC_STATUS_OK, ProcessChangesUntilDone());
   VerifyConsistency();
 
   EXPECT_EQ(1u, CountApp());
   EXPECT_EQ(3u, CountLocalFile(app_id));
   VerifyLocalFolder(app_id, FPL("conflict_to_pending_remote"));
   VerifyLocalFolder(app_id, FPL("conflict_to_existing_remote"));
 
   EXPECT_EQ(4u, CountMetadata());
@@ skipping 42 matching lines @@
   RegisterApp(app_id);
   std::string app_root_folder_id = GetFileIDByPath(app_id, FPL(""));
 
   AddLocalFolder(app_id, FPL("conflict_to_pending_remote"));
   AddLocalFolder(app_id, FPL("conflict_to_existing_remote"));
   RemoveLocal(app_id, FPL("conflict_to_pending_remote"));
   RemoveLocal(app_id, FPL("conflict_to_existing_remote"));
 
   EXPECT_EQ(google_apis::HTTP_SUCCESS,
             fake_drive_service_helper()->AddFile(
-                app_root_folder_id, "conflict_to_pending_remote", "foo", NULL));
+                app_root_folder_id, "conflict_to_pending_remote", "foo",
+                nullptr));
 
   FetchRemoteChanges();
 
   EXPECT_EQ(google_apis::HTTP_SUCCESS,
             fake_drive_service_helper()->AddFile(
                 app_root_folder_id, "conflict_to_existing_remote", "bar",
-                NULL));
+                nullptr));
 
   EXPECT_EQ(SYNC_STATUS_OK, ProcessChangesUntilDone());
   VerifyConsistency();
 
   EXPECT_EQ(1u, CountApp());
   EXPECT_EQ(3u, CountLocalFile(app_id));
   VerifyLocalFile(app_id, FPL("conflict_to_pending_remote"), "foo");
   VerifyLocalFile(app_id, FPL("conflict_to_existing_remote"), "bar");
 
   EXPECT_EQ(4u, CountMetadata());
@@ skipping 246 matching lines @@
 
   EXPECT_EQ(SYNC_STATUS_OK, ProcessChangesUntilDone());
   VerifyConsistency();
 
   // Test body starts from here.
   RemoveLocal(app_id, FPL("conflict_to_pending_remote"));
   RemoveLocal(app_id, FPL("conflict_to_existing_remote"));
 
   EXPECT_EQ(google_apis::HTTP_CREATED,
             fake_drive_service_helper()->AddFolder(
-                app_root_folder_id, "conflict_to_pending_remote", NULL));
+                app_root_folder_id, "conflict_to_pending_remote", nullptr));
 
   FetchRemoteChanges();
 
   EXPECT_EQ(google_apis::HTTP_CREATED,
             fake_drive_service_helper()->AddFolder(
-                app_root_folder_id, "conflict_to_existing_remote", NULL));
+                app_root_folder_id, "conflict_to_existing_remote", nullptr));
 
   EXPECT_EQ(SYNC_STATUS_OK, ProcessChangesUntilDone());
   VerifyConsistency();
 
   EXPECT_EQ(1u, CountApp());
   EXPECT_EQ(3u, CountLocalFile(app_id));
   VerifyLocalFolder(app_id, FPL("conflict_to_pending_remote"));
   VerifyLocalFolder(app_id, FPL("conflict_to_existing_remote"));
 
   EXPECT_EQ(4u, CountMetadata());
@@ skipping 48 matching lines @@
 
   std::string app_root_folder_id = GetFileIDByPath(app_id, FPL(""));
   AddOrUpdateLocalFile(app_id, FPL("conflict_to_pending_remote"), "foo");
   AddOrUpdateLocalFile(app_id, FPL("conflict_to_existing_remote"), "bar");
   RemoveLocal(app_id, FPL("conflict_to_pending_remote"));
   RemoveLocal(app_id, FPL("conflict_to_existing_remote"));
 
   EXPECT_EQ(google_apis::HTTP_SUCCESS,
             fake_drive_service_helper()->AddFile(
                 app_root_folder_id, "conflict_to_pending_remote", "hoge",
-                NULL));
+                nullptr));
 
   FetchRemoteChanges();
 
   EXPECT_EQ(google_apis::HTTP_SUCCESS,
             fake_drive_service_helper()->AddFile(
                 app_root_folder_id, "conflict_to_existing_remote", "fuga",
-                NULL));
+                nullptr));
 
   EXPECT_EQ(SYNC_STATUS_OK, ProcessChangesUntilDone());
   VerifyConsistency();
 
   EXPECT_EQ(1u, CountApp());
   EXPECT_EQ(3u, CountLocalFile(app_id));
   VerifyLocalFile(app_id, FPL("conflict_to_pending_remote"), "hoge");
   VerifyLocalFile(app_id, FPL("conflict_to_existing_remote"), "fuga");
 
   EXPECT_EQ(4u, CountMetadata());
@@ skipping 71 matching lines @@
 
   EXPECT_EQ(1u, CountApp());
   EXPECT_EQ(1u, CountLocalFile(app_id));
 
   EXPECT_EQ(2u, CountMetadata());
   EXPECT_EQ(2u, CountTracker());
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system