Adds custom ttl argument to HostCache::Set.

net/proxy/proxy_resolver_v8.cc

 // Copyright (c) 2011 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 <algorithm>
 #include <cstdio>
 
 #include "net/proxy/proxy_resolver_v8.h"
 
 #include "base/basictypes.h"
@@ skipping 724 matching lines @@
     const BoundNetLog& net_log) {
   // If the V8 instance has not been initialized (either because
   // SetPacScript() wasn't called yet, or because it failed.
   if (!context_.get())
     return ERR_FAILED;
 
   // Associate some short-lived context with this request. This context will be
   // available to any of the javascript "bindings" that are subsequently invoked
   // from the javascript.
   //
-  // In particular, we create a HostCache that is aggressive about caching
-  // failed DNS resolves.
-  HostCache host_cache(
-      50,
-      base::TimeDelta::FromMinutes(5),
-      base::TimeDelta::FromMinutes(5));
+  // In particular, we create a HostCache to aggressively cache failed DNS
+  // resolves.
+  const unsigned kMaxCacheEntries = 50;
+  HostCache host_cache(kMaxCacheEntries);
 
   ProxyResolverRequestContext request_context(&net_log, &host_cache);
 
   // Otherwise call into V8.
   context_->SetCurrentRequestContext(&request_context);
   int rv = context_->ResolveProxy(query_url, results);
   context_->SetCurrentRequestContext(NULL);
 
   return rv;
 }
@@ skipping 36 matching lines @@
 
   // Try parsing the PAC script.
   scoped_ptr<Context> context(new Context(js_bindings_.get()));
   int rv = context->InitV8(script_data);
   if (rv == OK)
     context_.reset(context.release());
   return rv;
 }
 
 }  // namespace net