[Media Router] Wiring for searching route providers for new sinks.

chrome/browser/ui/webui/media_router/media_router_ui.cc

Index: chrome/browser/ui/webui/media_router/media_router_ui.cc
diff --git a/chrome/browser/ui/webui/media_router/media_router_ui.cc b/chrome/browser/ui/webui/media_router/media_router_ui.cc
index 9b7aa31f98d291bbdcad6d1a8c7d671ddfc370c4..742d59c656d6100c16b6b0d9a69aaacc20103ee6 100644
--- a/chrome/browser/ui/webui/media_router/media_router_ui.cc
+++ b/chrome/browser/ui/webui/media_router/media_router_ui.cc
@@ -434,10 +434,28 @@ void MediaRouterUI::ClearIssue(const std::string& issue_id) {
   router_->ClearIssue(issue_id);
 }
 
+void MediaRouterUI::SearchProviders(const MediaSink::Id& sink_id,
+                                    MediaCastMode cast_mode) {
+  query_result_manager_->StartSinkSearch(cast_mode, sink_id);
+}
+
 void MediaRouterUI::OnResultsUpdated(
     const std::vector<MediaSinkWithCastModes>& sinks) {
   sinks_ = sinks;
+  SortAndUpdateSinks();
+}
+
+void MediaRouterUI::OnSearchResultsReceived(
+    const MediaSink::Id& sink_id,
+    const std::vector<MediaSinkWithCastModes>& sinks) {
+  sinks_.reserve(sinks_.size() + sinks.size());
+  for (auto& sink : sinks) {
+    sinks_.push_back(sink);
+  }
+  SortAndUpdateSinks();
+}
 
+void MediaRouterUI::SortAndUpdateSinks() {
   const icu::Collator* collator_ptr = collator_.get();
   std::sort(
       sinks_.begin(), sinks_.end(),