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

content/renderer/presentation/presentation_dispatcher.cc

Index: content/renderer/presentation/presentation_dispatcher.cc
diff --git a/content/renderer/presentation/presentation_dispatcher.cc b/content/renderer/presentation/presentation_dispatcher.cc
index eacf1aa36c64fec1a11f1755f3e38f998a2ca4a0..b3dd95550274345fd02c71d5ce9843de25971990 100644
--- a/content/renderer/presentation/presentation_dispatcher.cc
+++ b/content/renderer/presentation/presentation_dispatcher.cc
@@ -330,16 +330,11 @@ void PresentationDispatcher::OnScreenAvailabilityNotSupported(
   UpdateListeningState(status);
 }
 
-void PresentationDispatcher::OnDefaultSessionStarted(
+void PresentationDispatcher::OnDefaultPresentationStarted(
     presentation::PresentationSessionInfoPtr session_info) {
   if (!controller_)
     return;
 
-  // Reset the callback to get the next event.
-  presentation_service_->ListenForDefaultSessionStart(base::Bind(
-      &PresentationDispatcher::OnDefaultSessionStarted,
-      base::Unretained(this)));
-
   if (!session_info.is_null()) {
     controller_->didStartDefaultSession(
         new PresentationConnectionClient(session_info.Clone()));
@@ -425,10 +420,6 @@ void PresentationDispatcher::ConnectToPresentationServiceIfNeeded() {
   presentation::PresentationServiceClientPtr client_ptr;
   binding_.Bind(GetProxy(&client_ptr), 16);
   presentation_service_->SetClient(client_ptr.Pass());
-
-  presentation_service_->ListenForDefaultSessionStart(base::Bind(
-      &PresentationDispatcher::OnDefaultSessionStarted,
-      base::Unretained(this)));
 }
 
 void PresentationDispatcher::UpdateListeningState(AvailabilityStatus* status) {