[Media Router] Adds return value to mojo MediaRouteProvider::TerminateRoute.

chrome/browser/media/router/mojo/media_router_mojo_impl.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/router/mojo/media_router_mojo_impl.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 667 matching lines @@
   media_route_provider_->ConnectRouteByRouteId(
       source_id, route_id, presentation_id, origin, tab_id,
       timeout > base::TimeDelta() ? timeout.InMilliseconds() : 0,
       off_the_record, base::Bind(&MediaRouterMojoImpl::RouteResponseReceived,
                                  base::Unretained(this), presentation_id,
                                  off_the_record, callbacks));
 }
 
 void MediaRouterMojoImpl::DoTerminateRoute(const MediaRoute::Id& route_id) {
   DVLOG_WITH_INSTANCE(1) << "DoTerminateRoute " << route_id;
-  media_route_provider_->TerminateRoute(route_id);
+  media_route_provider_->TerminateRoute(
+      route_id,
+      base::Bind(&MediaRouterMojoImpl::OnTerminateRouteResult,
+                 base::Unretained(this), route_id));
 }
 
 void MediaRouterMojoImpl::DoDetachRoute(const MediaRoute::Id& route_id) {
   DVLOG_WITH_INSTANCE(1) << "DoDetachRoute " << route_id;
   media_route_provider_->DetachRoute(route_id);
 }
 
 void MediaRouterMojoImpl::DoSendSessionMessage(
     const MediaRoute::Id& route_id,
     const std::string& message,
@@ skipping 128 matching lines @@
 
 void MediaRouterMojoImpl::OnPresentationConnectionClosed(
     const mojo::String& route_id,
     interfaces::MediaRouter::PresentationConnectionCloseReason reason,
     const mojo::String& message) {
   NotifyPresentationConnectionClose(
       route_id, mojo::PresentationConnectionCloseReasonFromMojo(reason),
       message);
 }
 
+void MediaRouterMojoImpl::OnTerminateRouteResult(
+    const MediaRoute::Id& route_id,
+    mojo::String error_text,
+    interfaces::RouteRequestResultCode result_code) {
+  if (result_code != interfaces::RouteRequestResultCode::OK) {
+    LOG(WARNING) << "Failed to terminate route " << route_id <<
+        ": result_code = " << result_code << ", " << error_text;
+  }
+  MediaRouterMojoMetrics::RecordMediaRouteProviderTerminateRoute(
+      mojo::RouteRequestResultCodeFromMojo(result_code));
+}
+
 void MediaRouterMojoImpl::DoStartObservingMediaSinks(
     const MediaSource::Id& source_id) {
   DVLOG_WITH_INSTANCE(1) << "DoStartObservingMediaSinks: " << source_id;
   // No need to call MRPM if there are no sinks available.
   if (availability_ == interfaces::MediaRouter::SinkAvailability::UNAVAILABLE)
     return;
 
   // No need to call MRPM if all observers have been removed in the meantime.
   auto* sinks_query = sinks_queries_.get(source_id);
   if (!sinks_query || !sinks_query->observers.might_have_observers())
@@ skipping 192 matching lines @@
                         base::Unretained(this), source_id));
 }
 
 void MediaRouterMojoImpl::DoUpdateMediaSinks(
     const MediaSource::Id& source_id) {
   DVLOG_WITH_INSTANCE(1) << "DoUpdateMediaSinks" << source_id;
   media_route_provider_->UpdateMediaSinks(source_id);
 }
 
 }  // namespace media_router