[Desktop FRE] Do not show Welcome page to profiles created in M56 or M57

chrome/browser/ui/startup/startup_browser_creator.h

Index: chrome/browser/ui/startup/startup_browser_creator.h
diff --git a/chrome/browser/ui/startup/startup_browser_creator.h b/chrome/browser/ui/startup/startup_browser_creator.h
index 4cd2359194a83c6dbdf21cedbe22b81d711f1c75..adfda97c02adadd9c393196ee8db0cb93d14d725 100644
--- a/chrome/browser/ui/startup/startup_browser_creator.h
+++ b/chrome/browser/ui/startup/startup_browser_creator.h
@@ -107,6 +107,11 @@ class StartupBrowserCreator {
   static void RegisterLocalStatePrefs(PrefRegistrySimple* registry);
   static void RegisterProfilePrefs(PrefRegistrySimple* registry);
 
+  // Returns whether the Consolidated startup flow will be used, based on the
+  // platform-appropriate Feature.
+  // TODO(tmartino): Remove once this is on 100%.
+  static bool UseConsolidatedFlow();
+
  private:
   friend class CloudPrintProxyPolicyTest;
   friend class CloudPrintProxyPolicyStartupTest;