Disable sync promo for Chromium builds

chrome/browser/ui/webui/sync_promo/sync_promo_ui.cc

Index: chrome/browser/ui/webui/sync_promo/sync_promo_ui.cc
diff --git a/chrome/browser/ui/webui/sync_promo/sync_promo_ui.cc b/chrome/browser/ui/webui/sync_promo/sync_promo_ui.cc
index 6545bdfadfde61aae1819496f42cd4fd7a42be53..2e18260a7e7aacc48714ff7b57a419d39c132864 100644
--- a/chrome/browser/ui/webui/sync_promo/sync_promo_ui.cc
+++ b/chrome/browser/ui/webui/sync_promo/sync_promo_ui.cc
@@ -219,8 +219,12 @@ bool SyncPromoUI::ShouldShowSyncPromoAtStartup(Profile* profile,
   if (!AllowPromoAtStartupForCurrentBrand())
     return false;
 
-  // Default to show the promo.
+  // Default to show the promo for Google Chrome builds.
+#if defined(GOOGLE_CHROME_BUILD)
   return true;
+#else
+  return false;
+#endif
 }
 
 void SyncPromoUI::DidShowSyncPromoAtStartup(Profile* profile) {
@@ -297,10 +301,6 @@ bool SyncPromoUI::UserHasSeenSyncPromoAtStartup(Profile* profile) {
 // static
 int SyncPromoUI::GetSyncPromoVersion() {
   int version = 0;
-  if (base::StringToInt(CommandLine::ForCurrentProcess()->
-      GetSwitchValueASCII(switches::kSyncPromoVersion), &version)) {
-    return version;
-  }
   if (sync_promo_trial::GetSyncPromoVersionForCurrentTrial(&version))
     return version;
   // Default promo version is 0.