net: move host_resolver files from net/base to net/dns

net/url_request/url_request_context_storage.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/url_request/url_request_context_storage.h"
 
 #include "base/logging.h"
 #include "net/base/cert_verifier.h"
-#include "net/base/host_resolver.h"
 #include "net/base/net_log.h"
 #include "net/base/network_delegate.h"
 #include "net/cookies/cookie_store.h"
+#include "net/dns/host_resolver.h"
 #include "net/ftp/ftp_transaction_factory.h"
 #include "net/http/http_auth_handler_factory.h"
 #include "net/http/http_server_properties.h"
 #include "net/http/http_transaction_factory.h"
 #include "net/proxy/proxy_service.h"
 #include "net/ssl/server_bound_cert_service.h"
 #include "net/url_request/fraudulent_certificate_reporter.h"
 #include "net/url_request/http_user_agent_settings.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_job_factory.h"
@@ skipping 101 matching lines @@
   throttler_manager_.reset(throttler_manager);
 }
 
 void URLRequestContextStorage::set_http_user_agent_settings(
     HttpUserAgentSettings* http_user_agent_settings) {
   context_->set_http_user_agent_settings(http_user_agent_settings);
   http_user_agent_settings_.reset(http_user_agent_settings);
 }
 
 }  // namespace net