Add Precache.CacheStatus.NonPrefetch.FromPrecache.

components/precache/core/precache_database_unittest.cc

Index: components/precache/core/precache_database_unittest.cc
diff --git a/components/precache/core/precache_database_unittest.cc b/components/precache/core/precache_database_unittest.cc
index aa9fa26ed3b45cb4147677c2c15162cc82a844cb..8d00c79f6f6c0c36bc49e985454d235f5c118dd3 100644
--- a/components/precache/core/precache_database_unittest.cc
+++ b/components/precache/core/precache_database_unittest.cc
@@ -101,6 +101,8 @@ class PrecacheDatabaseTest : public testing::Test {
     ASSERT_TRUE(precache_database_->Init(db_path));
   }
 
+  void TearDown() override { precache_url_table()->DeleteAll(); }
+
   std::map<GURL, base::Time> GetActualURLTableMap() {
     // Flush any buffered writes so that the URL table will be up to date.
     precache_database_->Flush();
@@ -335,6 +337,8 @@ TEST_F(PrecacheDatabaseTest, FetchOverNetworkWithURLTableEntry) {
   ExpectNewSample("Precache.Latency.NonPrefetch.NonTopHosts",
                   kLatency.InMilliseconds());
   ExpectNewSample("Precache.CacheStatus.NonPrefetch", kFromNetwork);
+  ExpectNewSample("Precache.CacheStatus.NonPrefetch.FromPrecache",
+                  kFromNetwork);
   ExpectNoOtherSamples();
 }
 
@@ -349,6 +353,8 @@ TEST_F(PrecacheDatabaseTest, FetchFromCacheWithURLTableEntry_NonCellular) {
   ExpectNewSample("Precache.Latency.NonPrefetch.NonTopHosts", 0);
   ExpectNewSample("Precache.CacheStatus.NonPrefetch",
                   HttpResponseInfo::CacheEntryStatus::ENTRY_USED);
+  ExpectNewSample("Precache.CacheStatus.NonPrefetch.FromPrecache",
+                  HttpResponseInfo::CacheEntryStatus::ENTRY_USED);
   ExpectNewSample("Precache.Saved", kSize);
   ExpectNewSample("Precache.Saved.Freshness", kFreshnessBucket10K);
   ExpectNoOtherSamples();
@@ -365,6 +371,8 @@ TEST_F(PrecacheDatabaseTest, FetchFromCacheWithURLTableEntry_Cellular) {
   ExpectNewSample("Precache.Latency.NonPrefetch.NonTopHosts", 0);
   ExpectNewSample("Precache.CacheStatus.NonPrefetch",
                   HttpResponseInfo::CacheEntryStatus::ENTRY_USED);
+  ExpectNewSample("Precache.CacheStatus.NonPrefetch.FromPrecache",
+                  HttpResponseInfo::CacheEntryStatus::ENTRY_USED);
   ExpectNewSample("Precache.Saved", kSize);
   ExpectNewSample("Precache.Saved.Cellular", kSize);
   ExpectNewSample("Precache.Saved.Freshness", kFreshnessBucket10K);