Add Precache.CacheStatus.Prefetch UMA.

components/precache/core/precache_database_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/core/precache_database.h"
 
 #include <stdint.h>
 
 #include <map>
 #include <memory>
@@ skipping 242 matching lines @@
 
 namespace {
 
 TEST_F(PrecacheDatabaseTest, PrecacheOverNetwork) {
   RecordPrecacheFromNetwork(kURL, kLatency, kFetchTime, kSize);
 
   EXPECT_EQ(BuildURLTableMap(kURL, kFetchTime), GetActualURLTableMap());
 
   ExpectNewSample("Precache.DownloadedPrecacheMotivated", kSize);
   ExpectNewSample("Precache.Latency.Prefetch", kLatency.InMilliseconds());
+  ExpectNewSample("Precache.CacheStatus.Prefetch", kFromNetwork);
   ExpectNewSample("Precache.Freshness.Prefetch", kFreshnessBucket10K);
   ExpectNoOtherSamples();
 }
 
 TEST_F(PrecacheDatabaseTest, PrecacheFromCacheWithURLTableEntry) {
   precache_url_table()->AddURL(kURL, kReferrerID, true, kOldFetchTime, false);
   RecordPrecacheFromCache(kURL, kFetchTime, kSize);
 
   // The URL table entry should have been updated to have |kFetchTime| as the
   // timestamp.
   EXPECT_EQ(BuildURLTableMap(kURL, kFetchTime), GetActualURLTableMap());
 
   ExpectNewSample("Precache.Latency.Prefetch", 0);
+  ExpectNewSample("Precache.CacheStatus.Prefetch",
+                  net::HttpResponseInfo::ENTRY_USED);
   ExpectNewSample("Precache.Freshness.Prefetch", kFreshnessBucket10K);
   ExpectNoOtherSamples();
 }
 
 TEST_F(PrecacheDatabaseTest, PrecacheFromCacheWithoutURLTableEntry) {
   RecordPrecacheFromCache(kURL, kFetchTime, kSize);
 
   EXPECT_TRUE(GetActualURLTableMap().empty());
 
   ExpectNewSample("Precache.Latency.Prefetch", 0);
+  ExpectNewSample("Precache.CacheStatus.Prefetch",
+                  net::HttpResponseInfo::ENTRY_USED);
   ExpectNewSample("Precache.Freshness.Prefetch", kFreshnessBucket10K);
   ExpectNoOtherSamples();
 }
 
 TEST_F(PrecacheDatabaseTest, FetchOverNetwork_NonCellular) {
   RecordFetchFromNetwork(kURL, kLatency, kFetchTime, kSize);
 
   EXPECT_TRUE(GetActualURLTableMap().empty());
 
   ExpectNewSample("Precache.DownloadedNonPrecache", kSize);
@@ skipping 390 matching lines @@
   EXPECT_NE(PrecacheReferrerHostEntry::kInvalidId, referrer_id);
   precache_database_->GetURLListForReferrerHost(referrer_id, &_,
                                                 &actual_downloaded_urls);
   EXPECT_THAT(actual_downloaded_urls,
               ElementsAre(GURL(already_reported_but_refetch)));
 }
 
 }  // namespace
 
 }  // namespace precache