Move Chrome OS switches to chromeos/chromeos_switches.cc

chrome/browser/chromeos/preferences.cc

Index: chrome/browser/chromeos/preferences.cc
diff --git a/chrome/browser/chromeos/preferences.cc b/chrome/browser/chromeos/preferences.cc
index 1aefed47e739dd5d06e98227f90b91108a8ad384..d62aa6c73579848cd54734920c168a3848586fd2 100644
--- a/chrome/browser/chromeos/preferences.cc
+++ b/chrome/browser/chromeos/preferences.cc
@@ -101,7 +101,7 @@ void Preferences::RegisterUserPrefs(
   registry->RegisterBooleanPref(
       prefs::kNaturalScroll,
       CommandLine::ForCurrentProcess()->HasSwitch(
-          ::switches::kNaturalScrollDefault),
+          switches::kNaturalScrollDefault),
       user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
   registry->RegisterBooleanPref(
       prefs::kPrimaryMouseButtonRight,
@@ -881,7 +881,7 @@ void Preferences::OnIsSyncingChanged() {
 void Preferences::ForceNaturalScrollDefault() {
   DVLOG(1) << "ForceNaturalScrollDefault";
   if (CommandLine::ForCurrentProcess()->HasSwitch(
-          ::switches::kNaturalScrollDefault) &&
+          switches::kNaturalScrollDefault) &&
       prefs_->IsSyncing() &&
       !prefs_->GetUserPrefValue(prefs::kNaturalScroll)) {
     DVLOG(1) << "Natural scroll forced to true";