Allow variations controls for the time banners are suppressed after ignore/dismiss.

chrome/browser/banners/app_banner_settings_helper.h

 // Copyright 2014 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_BANNERS_APP_BANNER_SETTINGS_HELPER_H_
 #define CHROME_BROWSER_BANNERS_APP_BANNER_SETTINGS_HELPER_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 127 matching lines @@
       base::Time time);
 
   // Returns true if any site under |origin| was launched from homescreen in the
   // last ten days. This allows services outside app banners to utilise the
   // content setting that ensures app banners are not shown for sites which ave
   // already been added to homescreen.
   static bool WasLaunchedRecently(Profile* profile,
                                   const GURL& origin_url,
                                   base::Time now);
 
+  // Set the number of days which dismissing/ignoring the banner should prevent
+  // a banner from showing.
+  static void SetDaysAfterDismissAndIgnoreToTrigger(unsigned int dismiss_days,
+                                                    unsigned int ignore_days);
+
   // Set the engagement weights assigned to direct and indirect navigations.
   static void SetEngagementWeights(double direct_engagement,
                                    double indirect_engagement);
 
   // Set the minimum number of minutes between banner visits that will
   // trigger a could show banner event. This must be less than the
   // number of minutes in a day, and evenly divide the number of minutes
   // in a day.
   static void SetMinimumMinutesBetweenVisits(unsigned int minutes);
 
@@ skipping 13 matching lines @@
 
   // Returns true if the app banner trigger condition should use the site
   // engagement score instead of the navigation-based heuristic.
   static bool ShouldUseSiteEngagementScore();
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(AppBannerSettingsHelper);
 };
 
 #endif  // CHROME_BROWSER_BANNERS_APP_BANNER_SETTINGS_HELPER_H_