[mDns] Move dns_sd_registry from extension/api/mdns to media/router/discovery/mdns

chrome/browser/media/router/discovery/mdns/dns_sd_delegate.cc

Index: chrome/browser/media/router/discovery/mdns/dns_sd_delegate.cc
diff --git a/chrome/browser/extensions/api/mdns/dns_sd_delegate.cc b/chrome/browser/media/router/discovery/mdns/dns_sd_delegate.cc
similarity index 70%
rename from chrome/browser/extensions/api/mdns/dns_sd_delegate.cc
rename to chrome/browser/media/router/discovery/mdns/dns_sd_delegate.cc
index 3dca22b2eac68eaecda6c8029660a04d9d7ae64d..4c9f3e19e84ec63f359a6d95c9979b9c01e10fb0 100644
--- a/chrome/browser/extensions/api/mdns/dns_sd_delegate.cc
+++ b/chrome/browser/media/router/discovery/mdns/dns_sd_delegate.cc
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/extensions/api/mdns/dns_sd_delegate.h"
+#include "chrome/browser/media/router/discovery/mdns/dns_sd_delegate.h"
 
-namespace extensions {
+namespace media_router {
 
 DnsSdService::DnsSdService() {}
 DnsSdService::DnsSdService(const DnsSdService& other) = default;
 DnsSdService::~DnsSdService() {}
 
-}  // namespace extensions
+}  // namespace media_router