Make inline blocks correctly update their line box selection state.

Source/core/rendering/RenderBlock.h

 /*
  * 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 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 154 matching lines @@
 
     virtual bool shouldPaintSelectionGaps() const OVERRIDE FINAL;
     GapRects selectionGapRectsForRepaint(const RenderLayerModelObject* repaintContainer);
     LayoutRect logicalLeftSelectionGap(RenderBlock* rootBlock, const LayoutPoint& rootBlockPhysicalPosition, const LayoutSize& offsetFromRootBlock,
                                        RenderObject* selObj, LayoutUnit logicalLeft, LayoutUnit logicalTop, LayoutUnit logicalHeight, const PaintInfo*);
     LayoutRect logicalRightSelectionGap(RenderBlock* rootBlock, const LayoutPoint& rootBlockPhysicalPosition, const LayoutSize& offsetFromRootBlock,
                                         RenderObject* selObj, LayoutUnit logicalRight, LayoutUnit logicalTop, LayoutUnit logicalHeight, const PaintInfo*);
     void getSelectionGapInfo(SelectionState, bool& leftGap, bool& rightGap);
     RenderBlock* blockBeforeWithinSelectionRoot(LayoutSize& offset) const;
 
+    virtual void setSelectionState(SelectionState) OVERRIDE;
+
     LayoutRect logicalRectToPhysicalRect(const LayoutPoint& physicalPosition, const LayoutRect& logicalRect);
 
     // Helper methods for computing line counts and heights for line counts.
     RootInlineBox* lineAtIndex(int) const;
     int lineCount(const RootInlineBox* = 0, bool* = 0) const;
     int heightForLineCount(int);
     void clearTruncation();
 
     void adjustRectForColumns(LayoutRect&) const;
     virtual LayoutSize columnOffset(const LayoutPoint&) const OVERRIDE;
@@ skipping 355 matching lines @@
     // FIXME: This is temporary as we move code that accesses block flow
     // member variables out of RenderBlock and into RenderBlockFlow.
     friend class RenderBlockFlow;
 };
 
 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderBlock, isRenderBlock());
 
 } // namespace WebCore
 
 #endif // RenderBlock_h