predictors: Key the resource prefetcher by URL, not navigation.

chrome/browser/predictors/resource_prefetch_predictor.cc

 // 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.
 
 #include "chrome/browser/predictors/resource_prefetch_predictor.h"
 
 #include <map>
 #include <set>
 #include <utility>
 
@@ skipping 544 matching lines @@
   std::vector<GURL> urls;
   PrefetchKeyType key_type;
   if (!GetPrefetchData(navigation_id, &urls, &key_type)) {
     // No prefetching data at host or URL level.
     return;
   }
 
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&ResourcePrefetcherManager::MaybeAddPrefetch,
-                 prefetch_manager_, navigation_id, key_type, urls));
+                 prefetch_manager_, navigation_id, urls));
 }
 
 void ResourcePrefetchPredictor::StopPrefetching(
     const NavigationID& navigation_id) {
   if (!prefetch_manager_.get())  // Not enabled.
     return;
 
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&ResourcePrefetcherManager::MaybeRemovePrefetch,
@@ skipping 351 matching lines @@
     // HistoryService is already loaded. Continue with Initialization.
     OnHistoryAndCacheLoaded();
     return;
   }
   DCHECK(!history_service_observer_.IsObserving(history_service));
   history_service_observer_.Add(history_service);
   return;
 }
 
 }  // namespace predictors