[Presentation API] make PresentationReceiver API consistent with latest spec

third_party/WebKit/Source/modules/presentation/PresentationReceiver.idl

Index: third_party/WebKit/Source/modules/presentation/PresentationReceiver.idl
diff --git a/third_party/WebKit/Source/modules/presentation/PresentationReceiver.idl b/third_party/WebKit/Source/modules/presentation/PresentationReceiver.idl
index 32226f7e734a4c499d5a63d3a25db6ddc63ad197..5138427750c6c1f9b4d2fd68ba094933244ffda9 100644
--- a/third_party/WebKit/Source/modules/presentation/PresentationReceiver.idl
+++ b/third_party/WebKit/Source/modules/presentation/PresentationReceiver.idl
@@ -2,13 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// https://w3c.github.io/presentation-api/#interface-presentation
+// This API was never implemented and has no known functional usages,
+// so this is a no-op as far as Web compatibility is concerned;
+// we should send an intent to ship when the implementation is further along.

[mlamouri (slow - plz ping), 2016/08/24 16:48:59]

I don't think you need this comment.

[zhaobin, 2016/08/24 17:34:12]

Done.

+
+// https://w3c.github.io/presentation-api/#idl-def-presentationreceiver
 
 [
     RuntimeEnabled=PresentationReceiver
-] interface PresentationReceiver : EventTarget {
-    [CallWith=ScriptState] Promise<PresentationConnection> getConnection();
-    [CallWith=ScriptState] Promise<sequence<PresentationConnection>> getConnections();
-
-    attribute EventHandler onconnectionavailable;
+] interface PresentationReceiver {
+    [SameObject, CallWith=ScriptState] readonly attribute Promise<PresentationConnectionList> connectionList;
 };