Remove StyleEngine::usesFirstLineRules().

sky/engine/core/rendering/RenderInline.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. 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.
  *
@@ skipping 117 matching lines @@
 
     RenderStyle* parentStyle = parent()->style();
     RenderInline* parentRenderInline = parent()->isRenderInline() ? toRenderInline(parent()) : 0;
     bool alwaysCreateLineBoxesNew = (parentRenderInline && parentRenderInline->alwaysCreateLineBoxes())
         || (parentRenderInline && parentStyle->verticalAlign() != BASELINE)
         || style()->verticalAlign() != BASELINE
         || style()->textEmphasisMark() != TextEmphasisMarkNone
         || !parentStyle->font().fontMetrics().hasIdenticalAscentDescentAndLineGap(style()->font().fontMetrics())
         || parentStyle->lineHeight() != style()->lineHeight();
 
-    if (!alwaysCreateLineBoxesNew && document().styleEngine()->usesFirstLineRules()) {
-        // Have to check the first line style as well.
-        parentStyle = parent()->style(true);
-        RenderStyle* childStyle = style(true);
-        alwaysCreateLineBoxesNew = !parentStyle->font().fontMetrics().hasIdenticalAscentDescentAndLineGap(childStyle->font().fontMetrics())
-        || childStyle->verticalAlign() != BASELINE
-        || parentStyle->lineHeight() != childStyle->lineHeight();
-    }
-
     if (alwaysCreateLineBoxesNew) {
         if (!fullLayout)
             dirtyLineBoxes(false);
         setAlwaysCreateLineBoxes();
     }
 }
 
 LayoutRect RenderInline::localCaretRect(InlineBox* inlineBox, int, LayoutUnit* extraWidthToEndOfLine)
 {
     if (firstChild()) {
@@ skipping 620 matching lines @@
 InlineFlowBox* RenderInline::createAndAppendInlineFlowBox()
 {
     setAlwaysCreateLineBoxes();
     InlineFlowBox* flowBox = createInlineFlowBox();
     m_lineBoxes.appendLineBox(flowBox);
     return flowBox;
 }
 
 LayoutUnit RenderInline::lineHeight(bool firstLine, LineDirectionMode /*direction*/, LinePositionMode /*linePositionMode*/) const
 {
-    if (firstLine && document().styleEngine()->usesFirstLineRules()) {
-        RenderStyle* s = style(firstLine);
-        if (s != style())
-            return s->computedLineHeight();
-    }
-
     return style()->computedLineHeight();
 }
 
 int RenderInline::baselinePosition(FontBaseline baselineType, bool firstLine, LineDirectionMode direction, LinePositionMode linePositionMode) const
 {
     ASSERT(linePositionMode == PositionOnContainingLine);
     const FontMetrics& fontMetrics = style(firstLine)->fontMetrics();
     return fontMetrics.ascent(baselineType) + (lineHeight(firstLine, direction, linePositionMode) - fontMetrics.height()) / 2;
 }
 
@@ skipping 224 matching lines @@
             pixelSnappedBox.maxY(),
             pixelSnappedBox.maxX() + outlineWidth,
             pixelSnappedBox.maxY() + outlineWidth,
             BSBottom, outlineColor, outlineStyle,
             outlineWidth,
             outlineWidth,
             antialias);
 }
 
 } // namespace blink