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

sky/engine/core/rendering/RenderFlexibleBox.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 108 matching lines @@
 int RenderFlexibleBox::baselinePosition(FontBaseline, bool, LineDirectionMode direction, LinePositionMode mode) const
 {
     ASSERT(mode == PositionOnContainingLine);
     int baseline = firstLineBoxBaseline();
     if (baseline == -1)
         baseline = synthesizedBaselineFromContentBox(this, direction);
 
     return beforeMarginInLineDirection(direction) + baseline;
 }
 
-int RenderFlexibleBox::firstLineBoxBaseline() const
+int RenderFlexibleBox::firstLineBoxBaseline(bool autoBaseline, FontBaseline baselineType) const
 {
     if (m_numberOfInFlowChildrenOnFirstLine <= 0)
         return -1;
     RenderBox* baselineChild = 0;
     int childNumber = 0;
     for (RenderBox* child = m_orderIterator.first(); child; child = m_orderIterator.next()) {
         if (child->isOutOfFlowPositioned())
             continue;
         if (alignmentForChild(child) == ItemPositionBaseline && !hasAutoMarginsInCrossAxis(child)) {
             baselineChild = child;
             break;
         }
         if (!baselineChild)
             baselineChild = child;
 
         ++childNumber;
         if (childNumber == m_numberOfInFlowChildrenOnFirstLine)
             break;
     }
 
     if (!baselineChild)
         return -1;
 
     if (!isColumnFlow() && hasOrthogonalFlow(baselineChild))
         return crossAxisExtentForChild(baselineChild) + baselineChild->logicalTop();
     if (isColumnFlow() && !hasOrthogonalFlow(baselineChild))
         return mainAxisExtentForChild(baselineChild) + baselineChild->logicalTop();
 
-    int baseline = baselineChild->firstLineBoxBaseline();
+    int baseline = baselineChild->firstLineBoxBaseline(autoBaseline, baselineType);
     if (baseline == -1) {
         // FIXME: We should pass |direction| into firstLineBoxBaseline and stop bailing out if we're a writing mode root.
         // This would also fix some cases where the flexbox is orthogonal to its container.
         LineDirectionMode direction = HorizontalLine;
         return synthesizedBaselineFromContentBox(baselineChild, direction) + baselineChild->logicalTop();
     }
 
     return baseline + baselineChild->logicalTop();
 }
 
@@ skipping 1077 matching lines @@
             ASSERT(child);
             LayoutUnit lineCrossAxisExtent = lineContexts[lineNumber].crossAxisExtent;
             LayoutUnit originalOffset = lineContexts[lineNumber].crossAxisOffset - crossAxisStartEdge;
             LayoutUnit newOffset = contentExtent - originalOffset - lineCrossAxisExtent;
             adjustAlignmentForChild(child, newOffset - originalOffset);
         }
     }
 }
 
 }