Roll 50: Copied IDLs, PYTHON scripts from WebKit removed deleted files in WebCore

modules/presentation/PresentationConnectionAvailableEvent.idl

Index: modules/presentation/PresentationConnectionAvailableEvent.idl
diff --git a/modules/presentation/PresentationConnectionAvailableEvent.idl b/modules/presentation/PresentationConnectionAvailableEvent.idl
new file mode 100644
index 0000000000000000000000000000000000000000..a937e2e3444402d376cf74c62281b1bc4a4f41bd
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+++ b/modules/presentation/PresentationConnectionAvailableEvent.idl
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+// 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.
+
+// https://w3c.github.io/presentation-api/#interface-presentationconnectionavailableeevent
+
+[
+    Constructor(DOMString type, PresentationConnectionAvailableEventInit eventInitDict),
+    RuntimeEnabled=Presentation
+] interface PresentationConnectionAvailableEvent : Event {
+    [SameObject] readonly attribute PresentationConnection connection;
+};