Removes --enable-stacked-tab-strip flag (Stacked Tabs)

chrome/browser/prefs/browser_prefs.cc

Index: chrome/browser/prefs/browser_prefs.cc
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index 9c50ef97e18159f0259ce49e4b4bedbc5ac9a75b..9a2b28952f903a954623d6dadeb8c4f2d25bf0ae 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -322,7 +322,7 @@ void RegisterLocalState(PrefRegistrySimple* registry) {
 
 #if defined(TOOLKIT_VIEWS)
   RegisterBrowserViewLocalPrefs(registry);
-  RegisterTabStripLayoutTypePrefs(registry);
+  tab_strip_layout_type_prefs::RegisterPrefs(registry);
 #endif
 }
 
@@ -575,6 +575,10 @@ void MigrateBrowserPrefs(Profile* profile, PrefService* local_state) {
 #if defined(OS_CHROMEOS)
   chromeos::default_pinned_apps_field_trial::MigratePrefs(local_state);
 #endif
+
+#if defined(TOOLKIT_VIEWS)
+  tab_strip_layout_type_prefs::MigratePrefs(local_state);
+#endif
 }
 
 }  // namespace chrome