Add functions to clean URLs from the activity log

chrome/browser/extensions/activity_log/activity_log.h

Index: chrome/browser/extensions/activity_log/activity_log.h
diff --git a/chrome/browser/extensions/activity_log/activity_log.h b/chrome/browser/extensions/activity_log/activity_log.h
index 01830ddba02469c47560ae5e494053e6e7601201..84b6305bbffd675ca952960089a8a8c9ff313740 100644
--- a/chrome/browser/extensions/activity_log/activity_log.h
+++ b/chrome/browser/extensions/activity_log/activity_log.h
@@ -122,6 +122,13 @@ class ActivityLog : public BrowserContextKeyedService,
 
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
+  // Clean up URLs from the activity log database.
+  // If restrict_urls is empty then all URLs in the activity log database are
+  // removed, otherwise only those in restrict_urls are removed.
+  virtual void RemoveURLs(const std::vector<GURL>& restrict_urls);
+  virtual void RemoveURLs(const std::set<GURL>& restrict_urls);
+  virtual void RemoveURL(const GURL& url);
+
  private:
   friend class ActivityLogFactory;
   friend class ActivityLogTest;