[SVG] SVGLength{,List} migration to new SVG property impl.

Source/core/svg/SVGLength.idl

 /*
- * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
- * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
- * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
- * Copyright (C) 2006 Apple Inc. All rights reserved.
+ * Copyright (C) 2013 Google Inc. All rights reserved.
  *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
  *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
  *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-interface SVGLength {
+[
+    ImplementedAs=SVGLengthTearOff,
+    SetReference(SVGElement contextElement)
+] interface SVGLength {
     // Length Unit Types
     const unsigned short SVG_LENGTHTYPE_UNKNOWN    = 0;
     const unsigned short SVG_LENGTHTYPE_NUMBER     = 1;
     const unsigned short SVG_LENGTHTYPE_PERCENTAGE = 2;
     const unsigned short SVG_LENGTHTYPE_EMS        = 3;
     const unsigned short SVG_LENGTHTYPE_EXS        = 4;
     const unsigned short SVG_LENGTHTYPE_PX         = 5;
     const unsigned short SVG_LENGTHTYPE_CM         = 6;
     const unsigned short SVG_LENGTHTYPE_MM         = 7;
     const unsigned short SVG_LENGTHTYPE_IN         = 8;
     const unsigned short SVG_LENGTHTYPE_PT         = 9;
     const unsigned short SVG_LENGTHTYPE_PC         = 10;
 
     readonly attribute unsigned short unitType;
-    [Custom, StrictTypeChecking, RaisesException] attribute float value;
+    [StrictTypeChecking, RaisesException] attribute float value;
 
-    [StrictTypeChecking] attribute float valueInSpecifiedUnits;
+    [StrictTypeChecking, RaisesException=Setter] attribute float valueInSpecifiedUnits;
     [TreatNullAs=NullString, StrictTypeChecking, RaisesException=Setter] attribute DOMString valueAsString;
 
     [StrictTypeChecking, RaisesException] void newValueSpecifiedUnits(unsigned short unitType,
                                                      float valueInSpecifiedUnits);
 
-    [Custom, StrictTypeChecking, RaisesException] void convertToSpecifiedUnits(unsigned short unitType);
+    [StrictTypeChecking, RaisesException] void convertToSpecifiedUnits(unsigned short unitType);
 };