Send the list of used and unused resources for precache

components/precache/content/precache_manager.h

 // Copyright 2013 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_PRECACHE_CONTENT_PRECACHE_MANAGER_H_
 #define COMPONENTS_PRECACHE_CONTENT_PRECACHE_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 151 matching lines @@
   void RecordStatsForFetch(const GURL& url,
                            const GURL& referrer,
                            const base::TimeDelta& latency,
                            const base::Time& fetch_time,
                            const net::HttpResponseInfo& info,
                            int64_t size);
 
   // Update precache-related metrics in response to a URL being fetched. Called
   // by RecordStatsForFetch() by way of an asynchronous HistoryService callback.
   void RecordStatsForFetchInternal(const GURL& url,
+                                   const std::string& referrer_host,
                                    const base::TimeDelta& latency,
                                    const base::Time& fetch_time,
                                    const net::HttpResponseInfo& info,
                                    int64_t size,
                                    int host_rank);
 
   // The browser context that owns this PrecacheManager.
   content::BrowserContext* const browser_context_;
 
   // The sync service corresponding to the browser context. Used to determine
@@ skipping 21 matching lines @@
 
   // Work that hasn't yet finished.
   std::unique_ptr<PrecacheUnfinishedWork> unfinished_work_;
 
   DISALLOW_COPY_AND_ASSIGN(PrecacheManager);
 };
 
 }  // namespace precache
 
 #endif  // COMPONENTS_PRECACHE_CONTENT_PRECACHE_MANAGER_H_