net: replace DnsRRResoler with TransportSecurityState in plumbing.

net/url_request/url_request_context_storage.cc

Index: net/url_request/url_request_context_storage.cc
diff --git a/net/url_request/url_request_context_storage.cc b/net/url_request/url_request_context_storage.cc
index e73bd8e11795c46e6ebc4c3baaf26b6a8170ba80..4f0a2b0c9f775e37983a20354366732f5987f562 100644
--- a/net/url_request/url_request_context_storage.cc
+++ b/net/url_request/url_request_context_storage.cc
@@ -7,7 +7,6 @@
 #include "base/logging.h"
 #include "net/base/cert_verifier.h"
 #include "net/base/cookie_store.h"
-#include "net/base/dnsrr_resolver.h"
 #include "net/base/host_resolver.h"
 #include "net/base/net_log.h"
 #include "net/base/network_delegate.h"
@@ -52,12 +51,6 @@ void URLRequestContextStorage::set_origin_bound_cert_service(
   origin_bound_cert_service_.reset(origin_bound_cert_service);
 }
 
-void URLRequestContextStorage::set_dnsrr_resolver(
-    DnsRRResolver* dnsrr_resolver) {
-  context_->set_dnsrr_resolver(dnsrr_resolver);
-  dnsrr_resolver_.reset(dnsrr_resolver);
-}
-
 void URLRequestContextStorage::set_dns_cert_checker(
     DnsCertProvenanceChecker* dns_cert_checker) {
   context_->set_dns_cert_checker(dns_cert_checker);