[Presentation API] (alternative) 1-UA: send message between controller and receiver page

content/renderer/presentation/presentation_connection_client.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/renderer/presentation/presentation_connection_client.h"
 
 #include "base/logging.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
 
 namespace content {
 
 PresentationConnectionClient::PresentationConnectionClient(
     blink::mojom::PresentationSessionInfoPtr session_info)
     : url_(session_info->url),
       id_(blink::WebString::fromUTF8(session_info->id)) {}
 
 PresentationConnectionClient::PresentationConnectionClient(
     const GURL& url,
     const mojo::String& id)
     : url_(url),
       id_(blink::WebString::fromUTF8(id)) {}
 
+PresentationConnectionClient::PresentationConnectionClient(
+    blink::mojom::PresentationSessionInfoPtr session_info,
+    blink::WebPresentationConnectionProxy* proxy)
+    : url_(session_info->url),
+      id_(blink::WebString::fromUTF8(session_info->id)),
+      proxy_(proxy) {}
+
 PresentationConnectionClient::~PresentationConnectionClient() {
 }
 
 blink::WebURL PresentationConnectionClient::getUrl() {
     return url_;
 }
 
 blink::WebString PresentationConnectionClient::getId() {
     return id_;
 }
 
+blink::WebPresentationConnectionProxy*
+PresentationConnectionClient::getOrCreateProxy() {
+  if (!proxy_)
+    proxy_ = new RendererPresentationConnection();
+  return proxy_;
+}
+
 }  // namespace content