Add SVG Text to support the CSS 'text-orientation' property

third_party/WebKit/Source/core/layout/svg/SVGTextMetrics.cpp

 /*
  * Copyright (C) Research In Motion Limited 2010-2012. 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.
  *
  * 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.
  *
  * 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.
  */
 
 #include "config.h"
 
 #include "core/layout/svg/SVGTextMetrics.h"
 
 #include "core/layout/svg/LayoutSVGInlineText.h"
+#include "platform/fonts/FontOrientation.h"
 
 namespace blink {
 
 SVGTextMetrics::SVGTextMetrics()
     : m_width(0)
     , m_height(0)
     , m_length(0)
 {
 }
 
@@ skipping 61 matching lines @@
 
     float scalingFactor = text->scalingFactor();
     ASSERT(scalingFactor);
 
     m_width = width / scalingFactor;
     m_height = text->scaledFont().fontMetrics().floatHeight() / scalingFactor;
 
     m_length = length;
 }
 
+float SVGTextMetrics::advance(FontOrientation orientation) const
+{
+    switch (orientation) {
+    case FontOrientation::Horizontal:
+    case FontOrientation::VerticalRotated:
+        return width();
+    case FontOrientation::VerticalUpright:
+        return height();
+    default:
+        ASSERT_NOT_REACHED();
+        return width();
+    }
 }
+
+}