[Presentation API] (5th) (1-UA) integrate controller and receiver side for 1-UA messaging

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 <utility>
@@ skipping 505 matching lines @@
   client_->OnSessionMessagesReceived(
       blink::mojom::PresentationSessionInfo::From(session),
       std::move(mojo_messages));
 }
 
 void PresentationServiceImpl::OnReceiverConnectionAvailable(
     const content::PresentationSessionInfo& session_info,
     PresentationConnectionPtr&& controller) {
   DVLOG(2) << "PresentationServiceImpl::OnReceiverConnectionAvailable";
 
-  // client_->OnReceiverConnectionAvailable(
-  //     blink::mojom::PresentationSessionInfo::From(session_info),
-  //     std::move(controller));
+  client_->OnReceiverConnectionAvailable(
+      blink::mojom::PresentationSessionInfo::From(session_info),
+      std::move(controller));
 }
 
 void PresentationServiceImpl::DidNavigateAnyFrame(
     content::RenderFrameHost* render_frame_host,
     const content::LoadCommittedDetails& details,
     const content::FrameNavigateParams& params) {
   DVLOG(2) << "PresentationServiceImpl::DidNavigateAnyFrame";
   if (!FrameMatches(render_frame_host))
     return;
 
@@ skipping 118 matching lines @@
 
 void PresentationServiceImpl::NewSessionCallbackWrapper::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