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

modules/presentation/DefaultSessionStartEvent.idl

Index: modules/presentation/DefaultSessionStartEvent.idl
diff --git a/modules/presentation/DefaultSessionStartEvent.idl b/modules/presentation/DefaultSessionStartEvent.idl
deleted file mode 100644
index 70bdf7ea2d83f04dbf3ad4ce00c2bea212d0a24b..0000000000000000000000000000000000000000
--- a/modules/presentation/DefaultSessionStartEvent.idl
+++ /dev/null
@@ -1,12 +0,0 @@
-// 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-defaultsessionstartevent
-
-[
-    Constructor(DOMString type, optional DefaultSessionStartEventInit eventInitDict),
-    RuntimeEnabled=Presentation
-] interface DefaultSessionStartEvent : Event {
-    [SameObject] readonly attribute PresentationSession session;
-};