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

modules/mediastream/DoubleRange.idl

Index: modules/mediastream/DoubleRange.idl
diff --git a/modules/background_sync/PeriodicSyncEventInit.idl b/modules/mediastream/DoubleRange.idl
similarity index 54%
copy from modules/background_sync/PeriodicSyncEventInit.idl
copy to modules/mediastream/DoubleRange.idl
index 60d2b728b8a9eea69f187c8524845b5210a8c763..424dfb09ca0e6870bbce4278861ed4a68d5bc14b 100644
--- a/modules/background_sync/PeriodicSyncEventInit.idl
+++ b/modules/mediastream/DoubleRange.idl
@@ -2,6 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-dictionary PeriodicSyncEventInit : ExtendableEventInit {
-    required PeriodicSyncRegistration registration;
+// https://w3c.github.io/mediacapture-main/getusermedia.html#idl-def-DoubleRange
+
+dictionary DoubleRange {
+    double max;
+    double min;
 };