Lose the user gesture expiration check on IdentifyReferrerChainByWebContents

chrome/browser/safe_browsing/safe_browsing_navigation_observer_manager.h

 // Copyright 2016 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_SAFE_BROWSING_SAFE_BROWSING_NAVIGATION_OBSERVER_MANAGER_H_
 #define CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_NAVIGATION_OBSERVER_MANAGER_H_
 
 #include <deque>
 #include "base/feature_list.h"
 #include "base/supports_user_data.h"
@@ skipping 201 matching lines @@
     return &navigation_event_list_;
   }
 
   HostToIpMap* host_to_ip_map() { return &host_to_ip_map_; }
 
   // Remove stale entries from navigation_event_list_ if they are older than
   // kNavigationFootprintTTLInSecond (2 minutes).
   void CleanUpNavigationEvents();
 
   // Remove stale entries from user_gesture_map_ if they are older than
-  // kUserGestureTTLInSecond (1 sec).
+  // kNavigationFootprintTTLInSecond (2 minutes).
   void CleanUpUserGestures();
 
   // Remove stale entries from host_to_ip_map_ if they are older than
   // kNavigationFootprintTTLInSecond (2 minutes).
   void CleanUpIpAddresses();
 
   bool IsCleanUpScheduled() const;
 
   void ScheduleNextCleanUpAfterInterval(base::TimeDelta interval);
 
@@ skipping 30 matching lines @@
   // vector of ResolvedIPAddresss.
   HostToIpMap host_to_ip_map_;
 
   base::OneShotTimer cleanup_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingNavigationObserverManager);
 };
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_NAVIGATION_OBSERVER_MANAGER_H_