Add Precache.CacheStatus.NonPrefetch.FromPrecache.

components/precache/content/precache_manager_unittest.cc

 // 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.
 
 #include "components/precache/content/precache_manager.h"
 
 #include <stddef.h>
 
 #include <map>
 #include <memory>
@@ skipping 538 matching lines @@
 
   // The other precaches should not have expired, so the following fetches from
   // the cache should count as saved bytes.
   precache_manager_->RecordStatsForFetch(GURL("http://recent-fetch.com"),
                                          GURL(), base::TimeDelta(),
                                          kCurrentTime, info_, 1000);
   precache_manager_->RecordStatsForFetch(GURL("http://yesterday-fetch.com"),
                                          GURL(), base::TimeDelta(),
                                          kCurrentTime, info_, 1000);
   expected_histogram_count_map["Precache.CacheStatus.NonPrefetch"] += 2;
+  expected_histogram_count_map
+      ["Precache.CacheStatus.NonPrefetch.FromPrecache"] += 2;
   expected_histogram_count_map["Precache.Latency.NonPrefetch"] += 2;
   expected_histogram_count_map["Precache.Latency.NonPrefetch.NonTopHosts"] += 2;
   expected_histogram_count_map["Precache.Saved"] += 2;
   expected_histogram_count_map["Precache.TimeSinceLastPrecache"] += 2;
   expected_histogram_count_map["Precache.Saved.Freshness"] = 2;
 
   base::RunLoop().RunUntilIdle();
   EXPECT_THAT(histograms_.GetTotalCountsForPrefix("Precache."),
               ContainerEq(expected_histogram_count_map));
 }
 
 }  // namespace precache