Create A/B test of SDCH...

chrome/browser/net/dns_master.h

 // Copyright (c) 2006-2008 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.
 
 // A DnsMaster object is instantiated once in the browser
 // process, and manages asynchronous resolution of DNS hostnames.
 // Most hostname lists are sent out by renderer processes, and
 // involve lists of hostnames that *might* be used in the near
 // future by the browsing user.  The goal of this class is to
 // cause the underlying DNS structure to lookup a hostname before
@@ skipping 81 matching lines @@
 
   // Construct a ListValue object that contains all the data in the referrers_
   // so that it can be persisted in a pref.
   void SerializeReferrers(ListValue* referral_list);
 
   // Process a ListValue that contains all the data from a previous reference
   // list, as constructed by SerializeReferrers(), and add all the identified
   // values into the current referrer list.
   void DeserializeReferrers(const ListValue& referral_list);
 
+  // For unit test code only.
+  size_t max_concurrent_lookups() const { return max_concurrent_lookups_; }
+
  private:
   FRIEND_TEST(DnsMasterTest, BenefitLookupTest);
   FRIEND_TEST(DnsMasterTest, ShutdownWhenResolutionIsPendingTest);
   FRIEND_TEST(DnsMasterTest, SingleLookupTest);
   FRIEND_TEST(DnsMasterTest, ConcurrentLookupTest);
   FRIEND_TEST(DnsMasterTest, DISABLED_MassiveConcurrentLookupTest);
   FRIEND_TEST(DnsMasterTest, PriorityQueuePushPopTest);
   FRIEND_TEST(DnsMasterTest, PriorityQueueReorderTest);
   friend class WaitForResolutionHelper;  // For testing.
 
@@ skipping 124 matching lines @@
   // thread safe) should be accessed only on |host_resolver_loop_|.
   scoped_refptr<net::HostResolver> host_resolver_;
   MessageLoop* host_resolver_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(DnsMaster);
 };
 
 }  // namespace chrome_browser_net
 
 #endif  // CHROME_BROWSER_NET_DNS_MASTER_H_