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

third_party/WebKit/public/platform/modules/presentation/presentation.mojom

Index: third_party/WebKit/public/platform/modules/presentation/presentation.mojom
diff --git a/third_party/WebKit/public/platform/modules/presentation/presentation.mojom b/third_party/WebKit/public/platform/modules/presentation/presentation.mojom
index cb5ce871cae6e63cb4357df4f6595aaa283a80ee..7f093b65b2865474a43bc90494a3e53b5d0ba142 100644
--- a/third_party/WebKit/public/platform/modules/presentation/presentation.mojom
+++ b/third_party/WebKit/public/platform/modules/presentation/presentation.mojom
@@ -105,6 +105,11 @@ interface PresentationService {
   // PresentationServiceClient::OnSessionMessagesReceived.
   // This is called after a presentation session is created.
   ListenForSessionMessages(PresentationSessionInfo sessionInfo);
+
+  // Returns a list of available receiver connections. In addition, when new
+  // receiver connections become available, |OnReceiverConnectionAvailable|
+  // will be invoked.
+  GetReceiverConnections() => (array<PresentationSessionInfo> connections);
 };
 
 interface PresentationServiceClient {
@@ -137,4 +142,7 @@ interface PresentationServiceClient {
 
   // See PresentationService::SetDefaultPresentationURL.
   OnDefaultSessionStarted(PresentationSessionInfo sessionInfo);
+
+  // See PresentationService::GetReceiverConnections.
+  OnReceiverConnectionAvailable(PresentationSessionInfo connection);
 };