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

core/css/cssom/Matrix.idl

+// Copyright 2016 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.
+
+[
+    Constructor(double a, double b, double c, double d, double e, double f),
+    Constructor(double m11, double m12, double m13, double m14,
+        double m21, double m22, double m23, double m24,
+        double m31, double m32, double m33, double m34,
+        double m41, double m42, double m43, double m44),
+    ImplementedAs=MatrixTransformComponent,
+    RuntimeEnabled=CSSTypedOM
+] interface Matrix : TransformComponent {
+    readonly attribute double a;
+    readonly attribute double b;
+    readonly attribute double c;
+    readonly attribute double d;
+    readonly attribute double e;
+    readonly attribute double f;
+    readonly attribute double m11;
+    readonly attribute double m12;
+    readonly attribute double m13;
+    readonly attribute double m14;
+    readonly attribute double m21;
+    readonly attribute double m22;
+    readonly attribute double m23;
+    readonly attribute double m24;
+    readonly attribute double m31;
+    readonly attribute double m32;
+    readonly attribute double m33;
+    readonly attribute double m34;
+    readonly attribute double m41;
+    readonly attribute double m42;
+    readonly attribute double m43;
+    readonly attribute double m44;
+};