Update SVG IDL interfaces to stop inheriting from SVGTests

Source/core/svg/SVGTextContentElement.idl

 /*
  * Copyright (C) 2006 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. 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.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 SVGTextContentElement : SVGStyledElement,
-                                  SVGTests,
                                   SVGLangSpace,
                                   SVGExternalResourcesRequired {
     // lengthAdjust Types
     const unsigned short LENGTHADJUST_UNKNOWN          = 0;
     const unsigned short LENGTHADJUST_SPACING          = 1;
     const unsigned short LENGTHADJUST_SPACINGANDGLYPHS = 2;
 
     readonly attribute SVGAnimatedLength      textLength;
     readonly attribute SVGAnimatedEnumeration lengthAdjust;
 
     long getNumberOfChars();
     float getComputedTextLength();
     [RaisesException] float getSubStringLength([Default=Undefined,IsIndex] optional unsigned long offset, 
                              [Default=Undefined,IsIndex] optional unsigned long length);
     [RaisesException] SVGPoint getStartPositionOfChar([Default=Undefined,IsIndex] optional unsigned long offset);
     [RaisesException] SVGPoint getEndPositionOfChar([Default=Undefined,IsIndex] optional unsigned long offset);
     [RaisesException] SVGRect getExtentOfChar([Default=Undefined,IsIndex] optional unsigned long offset);
     [RaisesException] float getRotationOfChar([Default=Undefined,IsIndex] optional unsigned long offset);
     long getCharNumAtPosition([Default=Undefined] optional SVGPoint point);
     [RaisesException] void selectSubString([Default=Undefined,IsIndex] optional unsigned long offset, 
                          [Default=Undefined,IsIndex] optional unsigned long length);
 };