[Presentation API, Android] Implement closing the route

chrome/browser/media/android/router/media_router_android.cc

 // 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.
 
 #include "chrome/browser/media/android/router/media_router_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/guid.h"
 #include "base/logging.h"
@@ skipping 80 matching lines @@
 void MediaRouterAndroid::JoinRoute(
     const MediaSource::Id& source,
     const std::string& presentation_id,
     const GURL& origin,
     int tab_id,
     const std::vector<MediaRouteResponseCallback>& callbacks) {
   NOTIMPLEMENTED();
 }
 
 void MediaRouterAndroid::CloseRoute(const MediaRoute::Id& route_id) {
-  NOTIMPLEMENTED();
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> jroute_id =
+          base::android::ConvertUTF8ToJavaString(env, route_id);
+  Java_ChromeMediaRouter_closeRoute(
+      env, java_media_router_.obj(), jroute_id.obj());
 }
 
 void MediaRouterAndroid::SendRouteMessage(
     const MediaRoute::Id& route_id,
     const std::string& message,
     const SendRouteMessageCallback& callback) {
   NOTIMPLEMENTED();
 }
 
 void MediaRouterAndroid::SendRouteBinaryMessage(
@@ skipping 141 matching lines @@
 
   std::string error_text = ConvertJavaStringToUTF8(env, jerror_text);
 
   for (const MediaRouteResponseCallback& callback : request->callbacks)
     callback.Run(nullptr, std::string(), error_text);
 
   create_route_requests_.Remove(jcreate_route_request_id);
 }
 
 }  // namespace media_router