Add more data to net-internals view of DNS cache

net/dns/host_cache.h

 // Copyright (c) 2012 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 NET_DNS_HOST_CACHE_H_
 #define NET_DNS_HOST_CACHE_H_
 
 #include <stddef.h>
 
 #include <functional>
@@ skipping 61 matching lines @@
     Entry(int error, const AddressList& addresses);
     ~Entry();
 
     int error() const { return error_; }
     const AddressList& addresses() const { return addresses_; }
     bool has_ttl() const { return ttl_ >= base::TimeDelta(); }
     base::TimeDelta ttl() const { return ttl_; }
 
     base::TimeTicks expires() const { return expires_; }
 
+    // Public for the net-internals UI.
+    int network_changes() const { return network_changes_; }
+
    private:
     friend class HostCache;
 
     Entry(const Entry& entry,
           base::TimeTicks now,
           base::TimeDelta ttl,
           int network_changes);
 
-    int network_changes() const { return network_changes_; }
     int total_hits() const { return total_hits_; }
     int stale_hits() const { return stale_hits_; }
 
     bool IsStale(base::TimeTicks now, int network_changes) const;
     void CountHit(bool hit_is_stale);
     void GetStaleness(base::TimeTicks now,
                       int network_changes,
                       EntryStaleness* out) const;
 
     // The resolve results for this entry.
@@ skipping 50 matching lines @@
 
   // Clears hosts matching |host_filter| from the cache.
   void ClearForHosts(
       const base::Callback<bool(const std::string&)>& host_filter);
 
   // Returns the number of entries in the cache.
   size_t size() const;
 
   // Following are used by net_internals UI.
   size_t max_entries() const;
-
+  int network_changes() const { return network_changes_; }
   const EntryMap& entries() const { return entries_; }
 
   // Creates a default cache.
   static std::unique_ptr<HostCache> CreateDefaultCache();
 
  private:
   FRIEND_TEST_ALL_PREFIXES(HostCacheTest, NoCache);
 
   enum SetOutcome : int;
   enum LookupOutcome : int;
@@ skipping 24 matching lines @@
   size_t max_entries_;
   int network_changes_;
   EvictionCallback eviction_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(HostCache);
 };
 
 }  // namespace net
 
 #endif  // NET_DNS_HOST_CACHE_H_