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

content/renderer/presentation/presentation_connection_client.cc

Index: content/renderer/presentation/presentation_connection_client.cc
diff --git a/content/renderer/presentation/presentation_connection_client.cc b/content/renderer/presentation/presentation_connection_client.cc
index 145e08db32eae6ee210458173ec1056bca86b954..afa24eadac52210172f81f9f148b3020c3ea6970 100644
--- a/content/renderer/presentation/presentation_connection_client.cc
+++ b/content/renderer/presentation/presentation_connection_client.cc
@@ -21,6 +21,13 @@ PresentationConnectionClient::PresentationConnectionClient(
     : 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() {
 }
 
@@ -32,4 +39,11 @@ blink::WebString PresentationConnectionClient::getId() {
     return id_;
 }
 
+blink::WebPresentationConnectionProxy*
+PresentationConnectionClient::getOrCreateProxy() {
+  if (!proxy_)
+    proxy_ = new RendererPresentationConnection();
+  return proxy_;
+}
+
 }  // namespace content