[net] Add AsyncDNS.TTL histogram.

net/base/mock_host_resolver.cc

 // 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.
 
 #include "net/base/mock_host_resolver.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 153 matching lines @@
                           &addr,
                           NULL);
   if (cache_.get()) {
     HostCache::Key key(info.hostname(),
                        info.address_family(),
                        info.host_resolver_flags());
     // Storing a failure with TTL 0 so that it overwrites previous value.
     base::TimeDelta ttl;
     if (rv == OK)
       ttl = base::TimeDelta::FromSeconds(kCacheEntryTTLSeconds);
-    cache_->Set(key, rv, addr, base::TimeTicks::Now(), ttl);
+    cache_->Set(key, HostCache::Entry(rv, addr), base::TimeTicks::Now(), ttl);
   }
   if (rv == OK) {
     *addresses = addr;
     SetPortOnAddressList(info.port(), addresses);
   }
   return rv;
 }
 
 void MockHostResolverBase::ResolveNow(size_t id) {
   RequestMap::iterator it = requests_.find(id);
@@ skipping 205 matching lines @@
   CHECK_EQ(old_proc, current_proc_);
 }
 
 void ScopedDefaultHostResolverProc::Init(HostResolverProc* proc) {
   current_proc_ = proc;
   previous_proc_ = HostResolverProc::SetDefault(current_proc_);
   current_proc_->SetLastProc(previous_proc_);
 }
 
 }  // namespace net