[Sync] Replacing NULL with nullptr/null throughout sync code.

chrome/browser/sync/sync_ui_util.cc

 // Copyright (c) 2012 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 "chrome/browser/sync/sync_ui_util.h"
 
 #include <stdint.h>
 
 #include <string>
 
@@ skipping 75 matching lines @@
       if (IsChromeDashboardEnabled()) {
         return l10n_util::GetStringFUTF16(
             IDS_SYNC_ACCOUNT_SYNCING_WITH_MANAGE_LINK_NEW,
             base::ASCIIToUTF16(chrome::kSyncGoogleDashboardURL));
       }
       return l10n_util::GetStringFUTF16(
           IDS_SYNC_ACCOUNT_SYNCING_WITH_MANAGE_LINK,
           base::ASCIIToUTF16(chrome::kSyncGoogleDashboardURL));
     default:
       NOTREACHED();
-      return NULL;
+      return nullptr;
   }
 }
 
 void GetStatusForActionableError(
     const syncer::SyncProtocolError& error,
     base::string16* status_label) {
   DCHECK(status_label);
   switch (error.action) {
     case syncer::STOP_AND_RESTART_SYNC:
        status_label->assign(
@@ skipping 12 matching lines @@
        status_label->assign(
            l10n_util::GetStringUTF16(IDS_SYNC_CLEAR_USER_DATA));
       break;
     default:
       NOTREACHED();
   }
 }
 
 // TODO(akalin): Write unit tests for these three functions below.
 
-// status_label and link_label must either be both NULL or both non-NULL.
+// status_label and link_label must either be both null or both non-null.
 MessageType GetStatusInfo(Profile* profile,
                           ProfileSyncService* service,
                           const SigninManagerBase& signin,
                           StatusLabelStyle style,
                           base::string16* status_label,
                           base::string16* link_label) {
-  DCHECK_EQ(status_label == NULL, link_label == NULL);
+  DCHECK_EQ(status_label == nullptr, link_label == nullptr);
 
   MessageType result_type(SYNCED);
 
   if (!signin.IsAuthenticated())
     return PRE_SYNCED;
 
   if (!service || service->IsManaged() || service->IsFirstSetupComplete() ||
       !service->IsSyncRequested()) {
     // The order or priority is going to be: 1. Unrecoverable errors.
     // 2. Auth errors. 3. Protocol errors. 4. Passphrase errors.
@@ skipping 315 matching lines @@
 base::string16 ConstructTime(int64_t time_in_int) {
   base::Time time = base::Time::FromInternalValue(time_in_int);
 
   // If time is null the format function returns a time in 1969.
   if (time.is_null())
     return base::string16();
   return base::TimeFormatFriendlyDateAndTime(time);
 }
 
 }  // namespace sync_ui_util