[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 b368751c5b49150b61b69226c5dd0dd055c5bb55..ff4516af15a76b77e4febd61c92f7549b1411e21 100644
--- a/chrome/browser/media/router/media_route.h
+++ b/chrome/browser/media/router/media_route.h
@@ -71,6 +71,11 @@ class MediaRoute {
 
   bool for_display() const { return for_display_; }
 
+  bool is_offscreen_presentation() const { return is_offscreen_presentation_; }
+  void set_is_offscreen_presentation(bool is_offscreen_presentation) {
+    is_offscreen_presentation = is_offscreen_presentation_;
+  }
+
   bool Equals(const MediaRoute& other) const;
 
  private:
@@ -81,6 +86,10 @@ class MediaRoute {
   bool is_local_;
   std::string custom_controller_path_;
   bool for_display_;
+
+  // Set to |true| if the presentation associated with this route is an
+  // offscreen presentation.
+  bool is_offscreen_presentation_;
 };
 
 }  // namespace media_router