Show sync promo at startup

chrome/browser/ui/webui/sync_promo_ui.h

Index: chrome/browser/ui/webui/sync_promo_ui.h
diff --git a/chrome/browser/ui/webui/sync_promo_ui.h b/chrome/browser/ui/webui/sync_promo_ui.h
index 1e1f783166b2dc9808bc2a2864b3b6d98e94a3bf..491436997f052dd6f27aea3b55034e71328b4ad7 100644
--- a/chrome/browser/ui/webui/sync_promo_ui.h
+++ b/chrome/browser/ui/webui/sync_promo_ui.h
@@ -8,6 +8,8 @@
 
 #include "chrome/browser/ui/webui/chrome_web_ui.h"
 
+class Profile;
+
 // The Web UI handler for chrome://syncpromo.
 class SyncPromoUI : public ChromeWebUI {
  public:
@@ -18,6 +20,13 @@ class SyncPromoUI : public ChromeWebUI {
   // Returns true if the sync promo should be visible.
   static bool ShouldShowSyncPromo();
 
+  // Returns true if we should show the sync promo at startup.
+  static bool ShouldShowSyncPromoAtStartup(Profile* profile,
+                                           bool is_new_profile);
+  // Called when the sync promo has been shown so that we can keep track
+  // of the number of times we've displayed it.
+  static void DidShowSyncPromoAtStartup(Profile* profile);
+
  private:
   DISALLOW_COPY_AND_ASSIGN(SyncPromoUI);
 };