Move SVGTextMetrics::constructTextRun to SVGTextMetricsBuilder

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 "core/layout/svg/SVGTextMetrics.h"
 
 #include "core/layout/api/LineLayoutSVGInlineText.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)
 {
 }
 
 SVGTextMetrics::SVGTextMetrics(SVGTextMetrics::MetricsType)
     : m_width(0)
     , m_height(0)
     , m_length(1)
 {
 }
 
-TextRun SVGTextMetrics::constructTextRun(LineLayoutSVGInlineText textLayoutItem, unsigned position, unsigned length, TextDirection textDirection)
-{
-    const ComputedStyle& style = textLayoutItem.styleRef();
-
-    TextRun run(static_cast<const LChar*>(nullptr) // characters, will be set below if non-zero.
-        , 0 // length, will be set below if non-zero.
-        , 0 // xPos, only relevant with allowTabs=true
-        , 0 // padding, only relevant for justified text, not relevant for SVG
-        , TextRun::AllowTrailingExpansion
-        , textDirection
-        , isOverride(style.unicodeBidi()) /* directionalOverride */);
-
-    if (length) {
-        if (textLayoutItem.is8Bit())
-            run.setText(textLayoutItem.characters8() + position, length);
-        else
-            run.setText(textLayoutItem.characters16() + position, length);
-    }
-
-    // We handle letter & word spacing ourselves.
-    run.disableSpacing();
-
-    // Propagate the maximum length of the characters buffer to the TextRun, even when we're only processing a substring.
-    run.setCharactersLength(textLayoutItem.textLength() - position);
-    ASSERT(run.charactersLength() >= run.length());
-    return run;
-}
-
 SVGTextMetrics::SVGTextMetrics(LineLayoutSVGInlineText textLayoutItem, unsigned length, float width)
 {
     ASSERT(textLayoutItem);
 
     float scalingFactor = textLayoutItem.scalingFactor();
     ASSERT(scalingFactor);
 
     m_width = width / scalingFactor;
     m_height = textLayoutItem.scaledFont().getFontMetrics().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();
     }
 }
 
 } // namespace blink