Revert of Move geometry interface files to geometry directory.

third_party/WebKit/Source/core/dom/DOMMatrixInit.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.
+
+// https://drafts.fxtf.org/geometry/#dictdef-dommatrixinit
+
+dictionary DOMMatrixInit {
+    unrestricted double a;
+    unrestricted double b;
+    unrestricted double c;
+    unrestricted double d;
+    unrestricted double e;
+    unrestricted double f;
+    unrestricted double m11;
+    unrestricted double m12;
+    unrestricted double m13 = 0;
+    unrestricted double m14 = 0;
+    unrestricted double m21;
+    unrestricted double m22;
+    unrestricted double m23 = 0;
+    unrestricted double m24 = 0;
+    unrestricted double m31 = 0;
+    unrestricted double m32 = 0;
+    unrestricted double m33 = 1;
+    unrestricted double m34 = 0;
+    unrestricted double m41;
+    unrestricted double m42;
+    unrestricted double m43 = 0;
+    unrestricted double m44 = 1;
+    boolean is2D;
+};