Remove FOR_EACH_OBSERVER macro usage in chrome/browser/ui

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 <utility>
 
 #include "base/containers/hash_tables.h"
 #include "base/memory/ptr_util.h"
@@ skipping 214 matching lines @@
              }) == sources.end();
 }
 
 void QueryResultManager::NotifyOnResultsUpdated() {
   std::vector<MediaSinkWithCastModes> sinks;
   for (const auto& sink_pair : all_sinks_) {
     MediaSinkWithCastModes sink_with_cast_modes(sink_pair.first);
     sink_with_cast_modes.cast_modes = sink_pair.second.GetCastModes();
     sinks.push_back(sink_with_cast_modes);
   }
-  FOR_EACH_OBSERVER(QueryResultManager::Observer, observers_,
-                    OnResultsUpdated(sinks));
+  for (QueryResultManager::Observer& observer : observers_)
+    observer.OnResultsUpdated(sinks);
 }
 
 }  // namespace media_router