Cache failed DNS resolutions for 1 second....

net/base/mock_host_resolver.cc

 // 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.
 
 #include "net/base/mock_host_resolver.h"
 
 #include "base/string_util.h"
 #include "base/platform_thread.h"
 #include "base/ref_counted.h"
 #include "googleurl/src/url_canon_ip.h"
@@ skipping 75 matching lines @@
   rules_ = new RuleBasedHostResolverProc(catchall);
 
   HostResolverProc* proc = rules_;
 
   // Lastly add the provided interceptor to the front of the chain.
   if (interceptor) {
     interceptor->set_previous_proc(proc);
     proc = interceptor;
   }
 
-  int max_cache_entries = use_caching_ ? 100 : 0;
-  int max_cache_age_ms = use_caching_ ? 60000 : 0;
+  HostCache* cache = NULL;
 
-  impl_ = new HostResolverImpl(proc, max_cache_entries, max_cache_age_ms);
+  if (use_caching_) {
+    cache = new HostCache(
+        100,  // max entries.
+        base::TimeDelta::FromMinutes(1),
+        base::TimeDelta::FromSeconds(0));
+  }
+
+  impl_ = new HostResolverImpl(proc, cache);
 }
 
 //-----------------------------------------------------------------------------
 
 struct RuleBasedHostResolverProc::Rule {
   enum ResolverType {
     kResolverTypeFail,
     kResolverTypeSystem,
     kResolverTypeIPV6Literal,
   };
@@ skipping 120 matching lines @@
   CHECK(old_proc == current_proc_);
 }
 
 void ScopedDefaultHostResolverProc::Init(HostResolverProc* proc) {
   current_proc_ = proc;
   previous_proc_ = HostResolverProc::SetDefault(current_proc_);
   current_proc_->set_previous_proc(previous_proc_);
 }
 
 }  // namespace net