[Media Router] Support dual discovery

chrome/browser/media/router/discovery/dial/dial_media_sink_service_proxy.h

Index: chrome/browser/media/router/discovery/dial/dial_media_sink_service_proxy.h
diff --git a/chrome/browser/media/router/discovery/dial/dial_media_sink_service_proxy.h b/chrome/browser/media/router/discovery/dial/dial_media_sink_service_proxy.h
index b11bad149255a7ddd472059cb840281f16c48cdf..d1da79f86851923c594e8e47e4e9f33097d99edd 100644
--- a/chrome/browser/media/router/discovery/dial/dial_media_sink_service_proxy.h
+++ b/chrome/browser/media/router/discovery/dial/dial_media_sink_service_proxy.h
@@ -24,6 +24,7 @@ class URLRequestContextGetter;
 
 namespace media_router {
 
+class CastMediaSinkService;
 class DialMediaSinkServiceImpl;
 
 // A wrapper class of DialMediaSinkService handling thread hopping between UI
@@ -40,6 +41,7 @@ class DialMediaSinkServiceProxy
   // |context| is browser context.
   DialMediaSinkServiceProxy(
       const MediaSinkService::OnSinksDiscoveredCallback& callback,
+      scoped_refptr<CastMediaSinkService> cast_media_sink_service,
       content::BrowserContext* context);
 
   // Starts discovery of DIAL devices on IO thread. Caller is responsible for
@@ -75,6 +77,8 @@ class DialMediaSinkServiceProxy
  private:
   std::unique_ptr<DialMediaSinkServiceImpl> dial_media_sink_service_;
 
+  scoped_refptr<CastMediaSinkService> cast_media_sink_service_;
+
   scoped_refptr<net::URLRequestContextGetter> request_context_;
 
   DISALLOW_COPY_AND_ASSIGN(DialMediaSinkServiceProxy);