Add UMA Precache.Freshness.Prefetch

components/precache/core/precache_database.h

Index: components/precache/core/precache_database.h
diff --git a/components/precache/core/precache_database.h b/components/precache/core/precache_database.h
index 8ff0d6a6d1e55174385014e474719760d82e82de..cf2c4c25321f4dfcb5459d925ff69dc677a6afc5 100644
--- a/components/precache/core/precache_database.h
+++ b/components/precache/core/precache_database.h
@@ -29,6 +29,10 @@ class FilePath;
 class Time;
 }
 
+namespace net {
+class HttpResponseInfo;
+}
+
 namespace sql {
 class Connection;
 }
@@ -67,8 +71,8 @@ class PrecacheDatabase {
   void RecordURLPrefetch(const GURL& url,
                          const base::TimeDelta& latency,
                          const base::Time& fetch_time,
-                         int64_t size,
-                         bool was_cached);
+                         const net::HttpResponseInfo& info,
+                         int64_t size);
 
   // Report precache-related metrics in response to a URL being fetched, where
   // the fetch was not motivated by precaching. |is_connection_cellular|
@@ -76,8 +80,8 @@ class PrecacheDatabase {
   void RecordURLNonPrefetch(const GURL& url,
                             const base::TimeDelta& latency,
                             const base::Time& fetch_time,
+                            const net::HttpResponseInfo& info,
                             int64_t size,
-                            bool was_cached,
                             int host_rank,
                             bool is_connection_cellular);