[Media Router] Conditionally enable mDNS on Windows.

chrome/browser/media/router/mock_media_router.h

 // Copyright 2015 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.
 
 #ifndef CHROME_BROWSER_MEDIA_ROUTER_MOCK_MEDIA_ROUTER_H_
 #define CHROME_BROWSER_MEDIA_ROUTER_MOCK_MEDIA_ROUTER_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 49 matching lines @@
       scoped_ptr<std::vector<uint8_t>> data,
       const SendRouteMessageCallback& callback) override {
     SendRouteBinaryMessageInternal(route_id, data.get(), callback);
   }
   MOCK_METHOD3(SendRouteBinaryMessageInternal,
                void(const MediaRoute::Id& route_id,
                     std::vector<uint8_t>* data,
                     const SendRouteMessageCallback& callback));
   MOCK_METHOD1(AddIssue, void(const Issue& issue));
   MOCK_METHOD1(ClearIssue, void(const Issue::Id& issue_id));
+  MOCK_CONST_METHOD0(is_mdns_discovery_enabled, bool());
+  MOCK_METHOD0(EnableMdnsDiscovery, void());
   MOCK_METHOD1(OnPresentationSessionDetached,
                void(const MediaRoute::Id& route_id));
   scoped_ptr<PresentationConnectionStateSubscription>
   AddPresentationConnectionStateChangedCallback(
       const MediaRoute::Id& route_id,
       const content::PresentationConnectionStateChangedCallback& callback)
       override {
     OnAddPresentationConnectionStateChangedCallbackInvoked(callback);
     return connection_state_callbacks_.Add(callback);
   }
@@ skipping 18 matching lines @@
 
  private:
   base::CallbackList<void(
       const content::PresentationConnectionStateChangeInfo&)>
       connection_state_callbacks_;
 };
 
 }  // namespace media_router
 
 #endif  // CHROME_BROWSER_MEDIA_ROUTER_MOCK_MEDIA_ROUTER_H_