Use the baseline information exposed by C++ to pipe baseline data through RenderBox.

sky/engine/core/rendering/RenderBlock.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. 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
@@ skipping 1333 matching lines @@
 }
 
 LayoutUnit RenderBlock::minLineHeightForReplacedRenderer(bool isFirstLine, LayoutUnit replacedHeight) const
 {
     if (!(style(isFirstLine)->lineBoxContain() & LineBoxContainBlock))
         return 0;
 
     return std::max<LayoutUnit>(replacedHeight, lineHeight(isFirstLine, HorizontalLine, PositionOfInteriorLineBoxes));
 }
 
-int RenderBlock::firstLineBoxBaseline() const
+int RenderBlock::firstLineBoxBaseline(FontBaselineOrAuto baselineType) const
 {
     for (RenderBox* curr = firstChildBox(); curr; curr = curr->nextSiblingBox()) {
         if (!curr->isFloatingOrOutOfFlowPositioned()) {
-            int result = curr->firstLineBoxBaseline();
+            int result = curr->firstLineBoxBaseline(baselineType);
             if (result != -1)
                 return curr->logicalTop() + result; // Translate to our coordinate space.
         }
     }
 
     return -1;
 }
 
 int RenderBlock::inlineBlockBaseline(LineDirectionMode direction) const
 {
@@ skipping 303 matching lines @@
 void RenderBlock::showLineTreeAndMark(const InlineBox* markedBox1, const char* markedLabel1, const InlineBox* markedBox2, const char* markedLabel2, const RenderObject* obj) const
 {
     showRenderObject();
     for (const RootInlineBox* root = firstRootBox(); root; root = root->nextRootBox())
         root->showLineTreeAndMark(markedBox1, markedLabel1, markedBox2, markedLabel2, obj, 1);
 }
 
 #endif
 
 } // namespace blink