[Presentation API] Mojo typemap for content::PresentationConnectionMessage

third_party/WebKit/public/platform/modules/presentation/presentation.mojom

Index: third_party/WebKit/public/platform/modules/presentation/presentation.mojom
diff --git a/third_party/WebKit/public/platform/modules/presentation/presentation.mojom b/third_party/WebKit/public/platform/modules/presentation/presentation.mojom
index 7af914029cd35230df079b046eadfae4c6449d35..871285e41c2e67c66193270e7ea7b295f510a923 100644
--- a/third_party/WebKit/public/platform/modules/presentation/presentation.mojom
+++ b/third_party/WebKit/public/platform/modules/presentation/presentation.mojom
@@ -39,19 +39,9 @@ struct PresentationError {
   string message;
 };
 
-enum PresentationMessageType {
-  TEXT,
-  BINARY,
-};
-
-struct ConnectionMessage {
-  PresentationMessageType type;
-  // Used when message type is TEXT.
-  string? message;
-  // Used when message type is BINARY.
-  // TODO(lethalantidote): Make this a mojo union.
-  // See https://crbug.com/632623.
-  array<uint8>? data;
+union PresentationConnectionMessage {
+  string message;
+  array<uint8> data;
 };
 
 interface PresentationConnection {
@@ -59,7 +49,7 @@ interface PresentationConnection {
    // PresentationConnection.Send(). http://crbug.com/658474
 
    // Called when a message is sent by the target connection.
-   OnMessage(ConnectionMessage message) => (bool success);
+   OnMessage(PresentationConnectionMessage message) => (bool success);
 
    // Called when target connection notifies connection state change.
    DidChangeState(PresentationConnectionState state);
@@ -121,7 +111,7 @@ interface PresentationService {
   // the send requests and invalidate all pending requests. This occurs
   // for eg., when frame is deleted or navigated away.
   SendConnectionMessage(PresentationSessionInfo sessionInfo,
-                     ConnectionMessage message_request) => (bool success);
+                        PresentationConnectionMessage message) => (bool success);
 
   // Called when close() is called by the frame.
   CloseConnection(url.mojom.Url presentation_url, string presentation_id);
@@ -170,7 +160,7 @@ interface PresentationServiceClient {
 
   // See PresentationService::ListenForConnectionMessages.
   OnConnectionMessagesReceived(PresentationSessionInfo sessionInfo,
-                            array<ConnectionMessage> messages);
+                               array<PresentationConnectionMessage> messages);
 
   // Called on a presentation receiver when presentation connection is available
   // from the controlling page.