[Media Router] Support dual discovery

chrome/browser/media/router/discovery/dial/dial_media_sink_service_impl_unittest.cc

Index: chrome/browser/media/router/discovery/dial/dial_media_sink_service_impl_unittest.cc
diff --git a/chrome/browser/media/router/discovery/dial/dial_media_sink_service_impl_unittest.cc b/chrome/browser/media/router/discovery/dial/dial_media_sink_service_impl_unittest.cc
index c99e49001fd0c7cad4152d531b3812768f5ce0fb..760922eaae926563e8ad7c195ca322211f16f458 100644
--- a/chrome/browser/media/router/discovery/dial/dial_media_sink_service_impl_unittest.cc
+++ b/chrome/browser/media/router/discovery/dial/dial_media_sink_service_impl_unittest.cc
@@ -7,6 +7,7 @@
 #include "base/timer/mock_timer.h"
 #include "chrome/browser/media/router/discovery/dial/dial_device_data.h"
 #include "chrome/browser/media/router/discovery/dial/dial_registry.h"
+#include "chrome/browser/media/router/discovery/mdns/cast_media_sink_service.h"
 #include "chrome/browser/media/router/test_helper.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/test/test_browser_thread_bundle.h"
@@ -48,6 +49,7 @@ class DialMediaSinkServiceImplTest : public ::testing::Test {
       : thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP),
         media_sink_service_(
             new DialMediaSinkServiceImpl(mock_sink_discovered_cb_.Get(),
+                                         nullptr,
                                          profile_.GetRequestContext())) {}
 
   void SetUp() override {