Reland r262272: "Hook up the Info URL from SyncedNotificationsAppInfo".

chrome/browser/notifications/sync_notifier/welcome_delegate.h

Index: chrome/browser/notifications/sync_notifier/welcome_delegate.h
diff --git a/chrome/browser/notifications/sync_notifier/welcome_delegate.h b/chrome/browser/notifications/sync_notifier/welcome_delegate.h
index 7c5bc3bee5c2f0fed913bf374795d75a15964965..c9729544c27caa925b5df7fd6d73658cb693dd1e 100644
--- a/chrome/browser/notifications/sync_notifier/welcome_delegate.h
+++ b/chrome/browser/notifications/sync_notifier/welcome_delegate.h
@@ -22,13 +22,15 @@ class WelcomeDelegate : public NotificationDelegate {
  public:
   explicit WelcomeDelegate(const std::string& notification_id,
                            Profile* profile,
-                           const message_center::NotifierId notifier_id);
+                           const message_center::NotifierId notifier_id,
+                           const GURL& on_click_link);
 
   // NotificationDelegate interface.
   virtual void Display() OVERRIDE;
   virtual void Error() OVERRIDE;
   virtual void Close(bool by_user) OVERRIDE;
   virtual void Click() OVERRIDE;
+  virtual bool HasClickedListener() OVERRIDE;
   virtual void ButtonClick(int button_index) OVERRIDE;
   virtual content::RenderViewHost* GetRenderViewHost() const OVERRIDE;
   virtual std::string id() const OVERRIDE;
@@ -39,6 +41,7 @@ class WelcomeDelegate : public NotificationDelegate {
   const std::string notification_id_;
   Profile* profile_;  // Weak.
   const message_center::NotifierId notifier_id_;
+  GURL on_click_link_;
 
   DISALLOW_COPY_AND_ASSIGN(WelcomeDelegate);
 };