[Media Router] Convert to use typemaps for media_router.mojom.

chrome/browser/media/router/media_route.h

Index: chrome/browser/media/router/media_route.h
diff --git a/chrome/browser/media/router/media_route.h b/chrome/browser/media/router/media_route.h
index e3aa5a3b6762ffd1bc8df463cc543e0931f18e00..a32e1ddf3a48800909c77360a140513653de0710 100644
--- a/chrome/browser/media/router/media_route.h
+++ b/chrome/browser/media/router/media_route.h
@@ -44,6 +44,10 @@ class MediaRoute {
              const std::string& custom_controller_path,
              bool for_display);
   MediaRoute(const MediaRoute& other);
+
+  // Used by Mojo.
+  MediaRoute();
+
   ~MediaRoute();
 
   // The media route identifier.
@@ -88,16 +92,35 @@ class MediaRoute {
 
   bool Equals(const MediaRoute& other) const;
 
+  // Used by Mojo.
+  void set_media_route_id(const MediaRoute::Id& media_route_id) {
+    media_route_id_ = media_route_id;
+  }
+  void set_media_source(const MediaSource& media_source) {
+    media_source_ = media_source;
+  }
+  void set_media_sink_id(const MediaSink::Id& media_sink_id) {
+    media_sink_id_ = media_sink_id;
+  }
+  void set_description(const std::string& description) {
+    description_ = description;
+  }
+  void set_local(bool is_local) { is_local_ = is_local; }
+  void set_custom_controller_path(const std::string& custom_controller_path) {
+    custom_controller_path_ = custom_controller_path;
+  }
+  void set_for_display(bool for_display) { for_display_ = for_display; }
+
  private:
   MediaRoute::Id media_route_id_;
   MediaSource media_source_;
   MediaSink::Id media_sink_id_;
   std::string description_;
-  bool is_local_;
+  bool is_local_ = false;
   std::string custom_controller_path_;
-  bool for_display_;
-  bool is_incognito_;
-  bool is_offscreen_presentation_;
+  bool for_display_ = false;
+  bool is_incognito_ = false;
+  bool is_offscreen_presentation_ = false;
 };
 
 }  // namespace media_router