net: plumb DnsRRResolver from IOThread to HttpNetworkSession.

net/http/http_cache.h

 // Copyright (c) 2010 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.
 
 // This file declares a HttpTransactionFactory implementation that can be
 // layered on top of another HttpTransactionFactory to add HTTP caching.  The
 // caching logic follows RFC 2616 (any exceptions are called out in the code).
 //
 // The HttpCache takes a disk_cache::Backend as a parameter, and uses that for
 // the cache storage.
@@ skipping 23 matching lines @@
 
 class GURL;
 
 namespace disk_cache {
 class Backend;
 class Entry;
 }
 
 namespace net {
 
+class DnsRRResolver;
 class HostResolver;
 class HttpAuthHandlerFactory;
 class HttpNetworkDelegate;
 class HttpNetworkSession;
 struct HttpRequestInfo;
 class HttpResponseInfo;
 class IOBuffer;
 class NetLog;
 class ProxyService;
 class SSLConfigService;
@@ skipping 56 matching lines @@
    private:
     CacheType type_;
     const FilePath path_;
     int max_bytes_;
     scoped_refptr<base::MessageLoopProxy> thread_;
   };
 
   // The disk cache is initialized lazily (by CreateTransaction) in this case.
   // The  HttpCache takes ownership of the |backend_factory|.
   HttpCache(HostResolver* host_resolver,
+            DnsRRResolver* dnsrr_resolver,
             ProxyService* proxy_service,
             SSLConfigService* ssl_config_service,
             HttpAuthHandlerFactory* http_auth_handler_factory,
             HttpNetworkDelegate* network_delegate,
             NetLog* net_log,
             BackendFactory* backend_factory);
 
   // The disk cache is initialized lazily (by CreateTransaction) in  this case.
   // Provide an existing HttpNetworkSession, the cache can construct a
   // network layer with a shared HttpNetworkSession in order for multiple
@@ skipping 239 matching lines @@
 
   typedef base::hash_map<std::string, int> PlaybackCacheMap;
   scoped_ptr<PlaybackCacheMap> playback_cache_map_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpCache);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_CACHE_H_