Avoid forcing layout on children with orthogonal flow

Source/core/rendering/RenderFlexibleBox.h

Index: Source/core/rendering/RenderFlexibleBox.h
diff --git a/Source/core/rendering/RenderFlexibleBox.h b/Source/core/rendering/RenderFlexibleBox.h
index 0dc737bee245b2db047fe5d931ab658e754cab53..04835af71b27f7e9cb204076996fcd5e745bfdd2 100644
--- a/Source/core/rendering/RenderFlexibleBox.h
+++ b/Source/core/rendering/RenderFlexibleBox.h
@@ -64,6 +64,7 @@ protected:
     virtual bool supportsPartialLayout() const OVERRIDE { return false; }
 
     virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
+    virtual void removeChild(RenderObject*) FINAL OVERRIDE;
 
 private:
     enum FlexSign {
@@ -156,6 +157,7 @@ private:
     void flipForRightToLeftColumn();
     void flipForWrapReverse(const Vector<LineContext>&, LayoutUnit crossAxisStartEdge);
 
+    HashMap<const RenderObject*, LayoutUnit> m_intrinsicSizeAlongMainAxis;

[ojan, 2014/01/15 18:48:50]

I wonder if we can come up with a better name for this as it's only for
orthogonal flows and certain flex-basis values. I'm having trouble coming up
with anything though.

     mutable OrderIterator m_orderIterator;
     int m_numberOfInFlowChildrenOnFirstLine;
 };