Improvements to uses of base::SmallMap

chrome/browser/media/router/presentation_service_delegate_impl.cc

Index: chrome/browser/media/router/presentation_service_delegate_impl.cc
diff --git a/chrome/browser/media/router/presentation_service_delegate_impl.cc b/chrome/browser/media/router/presentation_service_delegate_impl.cc
index 784a226675a241e33a6f0ff1aa21051fbc0611d1..a18e7cd5cb9c775c03ca77455ff9bd1b3286686d 100644
--- a/chrome/browser/media/router/presentation_service_delegate_impl.cc
+++ b/chrome/browser/media/router/presentation_service_delegate_impl.cc
@@ -164,8 +164,8 @@ class PresentationFrame {
  private:
   MediaSource GetMediaSourceFromListener(
       content::PresentationScreenAvailabilityListener* listener) const;
-  base::SmallMap<std::map<std::string, MediaRoute>> presentation_id_to_route_;
-  base::SmallMap<
+  base::small_map<std::map<std::string, MediaRoute>> presentation_id_to_route_;
+  base::small_map<
       std::map<std::string, std::unique_ptr<PresentationMediaSinksObserver>>>
       url_to_sinks_observer_;
   std::unordered_map<