Allow max_group = 0 to pass all groups.

chrome/browser/web_resource/notification_promo.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_WEB_RESOURCE_NOTIFICATION_PROMO_H_
 #define CHROME_BROWSER_WEB_RESOURCE_NOTIFICATION_PROMO_H_
 #pragma once
 
 #include <string>
 
@@ skipping 46 matching lines @@
   // Check if this promo notification is new based on start/end times,
   // and trigger events accordingly.
   void CheckForNewNotification();
 
   // Actions on receiving a new promo notification.
   void OnNewNotification();
 
   // Flush data members to prefs for storage.
   void WritePrefs();
 
+  // Tests group_ against max_group_.
+  // When max_group_ is 0, all groups pass.
+  bool ExceedsMaxGroup() const;
+
   // Tests views_ against max_views_.
   // When max_views_ is 0, we don't cap the number of views.
   bool ExceedsMaxViews() const;
 
   // True if this promo is not targeted to G+ users, or if this is a G+ user.
   bool IsGPlusRequired() const;
 
   Profile* profile_;
   PrefService* prefs_;
 
@@ skipping 16 matching lines @@
   bool closed_;
 
   bool gplus_required_;
 
   bool new_notification_;
 
   DISALLOW_COPY_AND_ASSIGN(NotificationPromo);
 };
 
 #endif  // CHROME_BROWSER_WEB_RESOURCE_NOTIFICATION_PROMO_H_