Untyped intranet URL check should examine the start and end of a redirect chain.

components/history/core/browser/history_backend.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 COMPONENTS_HISTORY_CORE_BROWSER_HISTORY_BACKEND_H_
 #define COMPONENTS_HISTORY_CORE_BROWSER_HISTORY_BACKEND_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 588 matching lines @@
   // Returns a redirect chain in |redirects| for the VisitID
   // |cur_visit|. |cur_visit| is assumed to be valid. Assumes that
   // this HistoryBackend object has been Init()ed successfully.
   void GetRedirectsFromSpecificVisit(VisitID cur_visit,
                                      RedirectList* redirects);
 
   // Similar to the above function except returns a redirect list ending
   // at |cur_visit|.
   void GetRedirectsToSpecificVisit(VisitID cur_visit, RedirectList* redirects);
 
-  // Update the visit_duration information in visits table.
+  // Updates the visit_duration information in visits table.
   void UpdateVisitDuration(VisitID visit_id, const base::Time end_ts);
 
+  // Returns whether |url| is on an untyped intranet host.
+  bool IsUntypedIntranetHost(const GURL& url);
+
   // Querying ------------------------------------------------------------------
 
   // Backends for QueryHistory. *Basic() handles queries that are not
   // text search queries and can just be given directly to the history DB.
   // The *Text() version performs a brute force query of the history DB to
   // search for results which match the given text query.
   // Both functions assume QueryHistory already checked the DB for validity.
   void QueryHistoryBasic(const QueryOptions& options, QueryResults* result);
   void QueryHistoryText(const base::string16& text_query,
                         const QueryOptions& options,
@@ skipping 268 matching lines @@
   // Init is called. Defined after observers_ because it unregisters itself as
   // observer during destruction.
   std::unique_ptr<TypedUrlSyncableService> typed_url_syncable_service_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryBackend);
 };
 
 }  // namespace history
 
 #endif  // COMPONENTS_HISTORY_CORE_BROWSER_HISTORY_BACKEND_H_