Pass origin to StartObservingMediaSinks.

chrome/browser/ui/webui/media_router/query_result_manager.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/ui/webui/media_router/query_result_manager.h"
 
 #include "base/containers/hash_tables.h"
 #include "base/stl_util.h"
 #include "chrome/browser/media/router/media_router.h"
 #include "chrome/browser/media/router/media_sinks_observer.h"
@@ skipping 11 matching lines @@
                              QueryResultManager* result_manager)
       : MediaSinksObserver(router, source),
         cast_mode_(cast_mode),
         result_manager_(result_manager) {
     DCHECK(result_manager);
   }
 
   ~CastModeMediaSinksObserver() override {}
 
   // MediaSinksObserver
-  void OnSinksReceived(const std::vector<MediaSink>& result) override {
+  void OnSinksReceived(const MediaSource& incomingSource,
+                       const std::vector<MediaSink>& result) override {
+    if (!incomingSource.Equals(source())) {
+      return;
+    }
     latest_sink_ids_.clear();
     for (const MediaSink& sink : result) {
       latest_sink_ids_.push_back(sink.id());
     }
     result_manager_->UpdateWithSinksQueryResult(cast_mode_, result);
     result_manager_->NotifyOnResultsUpdated();
   }
 
   // Returns the most recent sink IDs that were passed to |OnSinksReceived|.
   void GetLatestSinkIds(std::vector<MediaSink::Id>* sink_ids) const {
@@ skipping 125 matching lines @@
 void QueryResultManager::NotifyOnResultsUpdated() {
   std::vector<MediaSinkWithCastModes> sinks;
   for (const auto& sink_pair : all_sinks_) {
     sinks.push_back(sink_pair.second);
   }
   FOR_EACH_OBSERVER(QueryResultManager::Observer, observers_,
       OnResultsUpdated(sinks));
 }
 
 }  // namespace media_router