[USS] Covert kSyncEnableUSSDeviceInfo commandline flag to Feature API

components/browser_sync/browser/profile_sync_service.cc

Index: components/browser_sync/browser/profile_sync_service.cc
diff --git a/components/browser_sync/browser/profile_sync_service.cc b/components/browser_sync/browser/profile_sync_service.cc
index 48d01e49922b4c5f96bb97d722406b96fce031e4..ef326ebbd80908f60ee6ff264413627d8d1260b6 100644
--- a/components/browser_sync/browser/profile_sync_service.cc
+++ b/components/browser_sync/browser/profile_sync_service.cc
@@ -294,9 +294,7 @@ void ProfileSyncService::Initialize() {
                  sync_enabled_weak_factory_.GetWeakPtr(),
                  syncer::ModelTypeSet(syncer::SESSIONS))));
 
-  if (channel_ == version_info::Channel::UNKNOWN &&
-      base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kSyncEnableUSSDeviceInfo)) {
+  if (base::FeatureList::IsEnabled(switches::kSyncUSSDeviceInfo)) {
     scoped_refptr<base::SequencedTaskRunner> blocking_task_runner(
         blocking_pool_->GetSequencedTaskRunnerWithShutdownBehavior(
             blocking_pool_->GetSequenceToken(),