Moved most of html lib generating scripts into tools.

sdk/lib/html/src/shared_SVGFactoryProviders.dart

-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-part of svg;
-
-final _START_TAG_REGEXP = new RegExp('<(\\w+)');
-
-class _SvgElementFactoryProvider {
-  static SvgElement createSvgElement_tag(String tag) {
-    final Element temp =
-      document.$dom_createElementNS("http://www.w3.org/2000/svg", tag);
-    return temp;
-  }
-
-  static SvgElement createSvgElement_svg(String svg) {
-    Element parentTag;
-    final match = _START_TAG_REGEXP.firstMatch(svg);
-    if (match != null && match.group(1).toLowerCase() == 'svg') {
-      parentTag = new Element.tag('div');
-    } else {
-      parentTag = new SvgSvgElement();
-    }
-
-    parentTag.innerHtml = svg;
-    if (parentTag.children.length == 1) return parentTag.children.removeLast();
-
-    throw new ArgumentError(
-        'SVG had ${parentTag.children.length} '
-        'top-level children but 1 expected');
-  }
-}
-
-class _SvgSvgElementFactoryProvider {
-  static SvgSvgElement createSvgSvgElement() {
-    final el = new SvgElement.tag("svg");
-    // The SVG spec requires the version attribute to match the spec version
-    el.attributes['version'] = "1.1";
-    return el;
-  }
-}