Show sync promo at startup

chrome/browser/app_controller_mac.mm

Index: chrome/browser/app_controller_mac.mm
diff --git a/chrome/browser/app_controller_mac.mm b/chrome/browser/app_controller_mac.mm
index 4acf0c682a3f801427de94d1a3b1bef5e4808402..0a8eac7d6c21d7fda23a7413dfa872753450a62b 100644
--- a/chrome/browser/app_controller_mac.mm
+++ b/chrome/browser/app_controller_mac.mm
@@ -19,6 +19,7 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_shutdown.h"
 #include "chrome/browser/command_updater.h"
+#include "chrome/browser/first_run/first_run.h"
 #include "chrome/browser/instant/instant_confirm_dialog.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/printing/cloud_print/virtual_driver_install_helper.h"
@@ -1066,7 +1067,9 @@ const AEEventClass kAECloudPrintUninstallClass = 'GCPu';
   }
 
   CommandLine dummy(CommandLine::NO_PROGRAM);
-  BrowserInit::LaunchWithProfile launch(FilePath(), dummy);
+  BrowserInit::IsFirstRun first_run = FirstRun::IsChromeFirstRun() ?
+      BrowserInit::IS_FIRST_RUN : BrowserInit::IS_NOT_FIRST_RUN;
+  BrowserInit::LaunchWithProfile launch(FilePath(), dummy, first_run);
   launch.OpenURLsInBrowser(browser, false, urls);
 }