[Presentation API] 1-UA presentation support + presenter APIs.

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 4d809008bfe6f5027fdb11aad43ac2e4aba1c703..c26112b12e682214df0510fccf3d05e21c0c2001 100644
--- a/chrome/browser/media/router/media_route.h
+++ b/chrome/browser/media/router/media_route.h
@@ -82,6 +82,14 @@ class MediaRoute {
 
   bool off_the_record() const { return off_the_record_; }
 
+  // Set to |true| if the presentation associated with this route is an
+  // offscreen presentation.
+  void set_is_offscreen_presentation(bool is_offscreen_presentation) {
+    is_offscreen_presentation_ = is_offscreen_presentation;
+  }
+
+  bool is_offscreen_presentation() const { return is_offscreen_presentation_; }
+
   bool Equals(const MediaRoute& other) const;
 
  private:
@@ -93,6 +101,7 @@ class MediaRoute {
   std::string custom_controller_path_;
   bool for_display_;
   bool off_the_record_;
+  bool is_offscreen_presentation_;
 };
 
 }  // namespace media_router