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

content/browser/presentation/presentation_service_impl.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/presentation/presentation_service_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <algorithm>
 #include <string>
@@ skipping 169 matching lines @@
 
 void PresentationServiceImpl::ListenForScreenAvailability(
       const mojo::String& url) {
   DVLOG(2) << "ListenForScreenAvailability " << url;
   if (!delegate_) {
     client_->OnScreenAvailabilityUpdated(url, false);
     return;
   }
 
   const std::string& availability_url = url.get();
-  if (screen_availability_listeners_.count(availability_url))
+  if (ContainsKey(screen_availability_listeners_, availability_url))
     return;
 
   std::unique_ptr<ScreenAvailabilityListenerImpl> listener(
       new ScreenAvailabilityListenerImpl(availability_url, this));
   if (delegate_->AddScreenAvailabilityListener(
       render_process_id_,
       render_frame_id_,
       listener.get())) {
     screen_availability_listeners_[availability_url] = std::move(listener);
   } else {
@@ skipping 252 matching lines @@
   if (!delegate_)
     return;
 
   PresentationSessionInfo session_info(session.To<PresentationSessionInfo>());
   delegate_->ListenForSessionMessages(
       render_process_id_, render_frame_id_, session_info,
       base::Bind(&PresentationServiceImpl::OnSessionMessages,
                  weak_factory_.GetWeakPtr(), session_info));
 }
 
+void PresentationServiceImpl::GetReceiverConnections(
+    const PresentationConnectionListMojoCallback& callback) {
+  DCHECK(!callback.is_null());
+  DVLOG(2) << "GetPresentationReceiverSession";
+  if (!delegate_) {
+    callback.Run(mojo::Array<blink::mojom::PresentationSessionInfoPtr>());
+    return;
+  }
+
+  std::vector<PresentationSessionInfo> connections =
+      delegate_->GetReceiverConnections(
+          render_process_id_, render_frame_id_,
+          base::Bind(&PresentationServiceImpl::OnReceiverConnectionAvailable,
+                     weak_factory_.GetWeakPtr()));
+  callback.Run(
+      mojo::Array<blink::mojom::PresentationSessionInfoPtr>::From(connections));
+}
+
+void PresentationServiceImpl::OnReceiverConnectionAvailable(
+    const content::PresentationSessionInfo& connection) {
+  DCHECK(client_);
+  client_->OnReceiverConnectionAvailable(
+      blink::mojom::PresentationSessionInfo::From(connection));
+}
+
 void PresentationServiceImpl::OnSessionMessages(
     const PresentationSessionInfo& session,
     const ScopedVector<PresentationSessionMessage>& messages,
     bool pass_ownership) {
   DCHECK(client_);
 
   DVLOG(2) << "OnSessionMessages";
   mojo::Array<blink::mojom::SessionMessagePtr> mojoMessages(messages.size());
   for (size_t i = 0; i < messages.size(); ++i)
     mojoMessages[i] = ToMojoSessionMessage(messages[i], pass_ownership);
@@ skipping 130 matching lines @@
 
 void PresentationServiceImpl::NewSessionMojoCallbackWrapper::Run(
     blink::mojom::PresentationSessionInfoPtr session,
     blink::mojom::PresentationErrorPtr error) {
   DCHECK(!callback_.is_null());
   callback_.Run(std::move(session), std::move(error));
   callback_.reset();
 }
 
 }  // namespace content