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

core/css/cssom/StyleValue.idl

Index: core/css/cssom/StyleValue.idl
diff --git a/core/css/cssom/StyleValue.idl b/core/css/cssom/StyleValue.idl
new file mode 100644
index 0000000000000000000000000000000000000000..85b809df0200302c1172ff7a85994f42718195c6
--- /dev/null
+++ b/core/css/cssom/StyleValue.idl
@@ -0,0 +1,12 @@
+// 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.
+
+[
+    RuntimeEnabled=CSSTypedOM,
+    GarbageCollected
+] interface StyleValue {
+    readonly attribute DOMString cssString;
+    // static (StyleValue or sequence<StyleValue>)? parse(DOMString property, DOMString cssText);
+    [CallWith=ScriptState] static object? parse(DOMString property, DOMString cssText);
+};