Record whether navigated to URLs are new or repeat URLs in the history.

chrome/browser/prerender/prerender_local_predictor.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_PRERENDER_PRERENDER_LOCAL_PREDICTOR_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_LOCAL_PREDICTOR_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 100 matching lines @@
     EVENT_PRERENDER_SERVICE_NO_RECORD_FOR_RESULT = 61,
     EVENT_PRERENDER_SERVICE_PARSED_CORRECTLY = 62,
     EVENT_PRERENDER_SERVICE_PARSE_ERROR = 63,
     EVENT_PRERENDER_SERVICE_PARSE_ERROR_INCORRECT_JSON = 64,
     EVENT_PRERENDER_SERVICE_HINTING_TIMED_OUT = 65,
     EVENT_PRERENDER_SERVICE_HINTING_URL_LOOKUP_TIMED_OUT = 66,
     EVENT_PRERENDER_SERVICE_CANDIDATE_URL_LOOKUP_TIMED_OUT = 67,
     EVENT_CONTINUE_PRERENDER_CHECK_ON_SERVICE_WHITELIST = 68,
     EVENT_CONTINUE_PRERENDER_CHECK_EXAMINE_NEXT_URL_LOCAL = 69,
     EVENT_CONTINUE_PRERENDER_CHECK_EXAMINE_NEXT_URL_SERVICE = 70,
+    EVENT_ADD_VISIT_RELEVANT_TRANSITION_REPEAT_URL = 71,
+    EVENT_ADD_VISIT_RELEVANT_TRANSITION_NEW_URL = 72,
     EVENT_MAX_VALUE
   };
 
   // A PrerenderLocalPredictor is owned by the PrerenderManager specified
   // in the constructor.  It will be destoryed at the time its owning
   // PrerenderManager is destroyed.
   explicit PrerenderLocalPredictor(PrerenderManager* prerender_manager);
   virtual ~PrerenderLocalPredictor();
 
   void Shutdown();
@@ skipping 74 matching lines @@
   base::hash_set<int64> url_whitelist_;
 
   base::WeakPtrFactory<PrerenderLocalPredictor> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderLocalPredictor);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_LOCAL_PREDICTOR_H_