Add dummy dart:html library for documentation.

lib/html/doc/interface/SVGPathSeg.dartdoc

Index: lib/html/doc/interface/SVGPathSeg.dartdoc
diff --git a/lib/html/doc/interface/SVGPathSeg.dartdoc b/lib/html/doc/interface/SVGPathSeg.dartdoc
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index 0000000000000000000000000000000000000000..3992113d55b4a98bcc0c673058bbb3841c81361d
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+++ b/lib/html/doc/interface/SVGPathSeg.dartdoc
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+// 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.
+
+// WARNING:
+//   This file contains documentation that is merged into the real source.
+//   Do not make code changes here.
+
+/// @domName SVGPathSeg
+interface SVGPathSeg {
+
+  static final int PATHSEG_ARC_ABS = 10;
+
+  static final int PATHSEG_ARC_REL = 11;
+
+  static final int PATHSEG_CLOSEPATH = 1;
+
+  static final int PATHSEG_CURVETO_CUBIC_ABS = 6;
+
+  static final int PATHSEG_CURVETO_CUBIC_REL = 7;
+
+  static final int PATHSEG_CURVETO_CUBIC_SMOOTH_ABS = 16;
+
+  static final int PATHSEG_CURVETO_CUBIC_SMOOTH_REL = 17;
+
+  static final int PATHSEG_CURVETO_QUADRATIC_ABS = 8;
+
+  static final int PATHSEG_CURVETO_QUADRATIC_REL = 9;
+
+  static final int PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS = 18;
+
+  static final int PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL = 19;
+
+  static final int PATHSEG_LINETO_ABS = 4;
+
+  static final int PATHSEG_LINETO_HORIZONTAL_ABS = 12;
+
+  static final int PATHSEG_LINETO_HORIZONTAL_REL = 13;
+
+  static final int PATHSEG_LINETO_REL = 5;
+
+  static final int PATHSEG_LINETO_VERTICAL_ABS = 14;
+
+  static final int PATHSEG_LINETO_VERTICAL_REL = 15;
+
+  static final int PATHSEG_MOVETO_ABS = 2;
+
+  static final int PATHSEG_MOVETO_REL = 3;
+
+  static final int PATHSEG_UNKNOWN = 0;
+
+  /** @domName SVGPathSeg.pathSegType */
+  final int pathSegType;
+
+  /** @domName SVGPathSeg.pathSegTypeAsLetter */
+  final String pathSegTypeAsLetter;
+}