Fix a bad comparator. This caused lookups in std::map to be wrong....

net/base/host_cache.h

 // Copyright (c) 2009 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_BASE_HOST_CACHE_H_
 #define NET_BASE_HOST_CACHE_H_
 
 #include <map>
 #include <string>
 
@@ skipping 24 matching lines @@
   struct Key {
     Key(const std::string& hostname, AddressFamily address_family)
         : hostname(hostname), address_family(address_family) {}
 
     bool operator==(const Key& other) const {
       return other.hostname == hostname &&
              other.address_family == address_family;
     }
 
     bool operator<(const Key& other) const {
-      if (address_family < other.address_family)
-        return true;
-      return hostname < other.hostname;
+      if (address_family == other.address_family)
+        return hostname < other.hostname;
+      return address_family < other.address_family;
     }
 
     std::string hostname;
     AddressFamily address_family;
   };
 
   typedef std::map<Key, scoped_refptr<Entry> > EntryMap;
 
   // Constructs a HostCache whose entries are valid for |cache_duration_ms|
   // milliseconds. The cache will store up to |max_entries|.
@@ skipping 57 matching lines @@
   // Map from hostname (presumably in lowercase canonicalized format) to
   // a resolved result entry.
   EntryMap entries_;
 
   DISALLOW_COPY_AND_ASSIGN(HostCache);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_HOST_CACHE_H_