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

modules/mediastream/ConstrainDoubleRange.idl

Index: modules/mediastream/ConstrainDoubleRange.idl
diff --git a/modules/mediastream/ConstrainDoubleRange.idl b/modules/mediastream/ConstrainDoubleRange.idl
new file mode 100644
index 0000000000000000000000000000000000000000..15e92f27a0663817e26ef45bc3a80db66cf5d94f
--- /dev/null
+++ b/modules/mediastream/ConstrainDoubleRange.idl
@@ -0,0 +1,10 @@
+// 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/mediacapture-main/getusermedia.html#idl-def-ConstrainDoubleRange
+
+dictionary ConstrainDoubleRange : DoubleRange {
+    double exact;
+    double ideal;
+};