Revert of Convert first letter into a pseudo element.

Source/core/rendering/RenderBoxModelObject.h

Index: Source/core/rendering/RenderBoxModelObject.h
diff --git a/Source/core/rendering/RenderBoxModelObject.h b/Source/core/rendering/RenderBoxModelObject.h
index a5d365379a563c3605ea36e51865dad610715871..98ce0dce569aa8aab2e93a3a4ccb52d7a270a0f2 100644
--- a/Source/core/rendering/RenderBoxModelObject.h
+++ b/Source/core/rendering/RenderBoxModelObject.h
@@ -181,6 +181,11 @@ protected:
     bool hasAutoHeightOrContainingBlockWithAutoHeight() const;
 
 public:
+
+    // For RenderBlocks and RenderInlines with m_style->styleType() == FIRST_LETTER, this tracks their remaining text fragments
+    RenderTextFragment* firstLetterRemainingText() const;
+    void setFirstLetterRemainingText(RenderTextFragment*);
+
     // These functions are only used internally to manipulate the render tree structure via remove/insert/appendChildNode.
     // Since they are typically called only to move objects around within anonymous blocks (which only have layers in
     // the case of column spans), the default for fullRemoveInsert is false rather than true.