Textarea resize-able only to larger; min-height and min-width properly set

Source/core/rendering/RenderLayerScrollableArea.h

 /*
  * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
  *   Randall Jesup <rjesup@wgate.com>
@@ skipping 191 matching lines @@
     LayoutUnit horizontalScrollbarStart(int minX) const;
     IntSize scrollbarOffset(const Scrollbar*) const;
 
     PassRefPtr<Scrollbar> createScrollbar(ScrollbarOrientation);
     void destroyScrollbar(ScrollbarOrientation);
 
     void setHasHorizontalScrollbar(bool hasScrollbar);
     void setHasVerticalScrollbar(bool hasScrollbar);
 
     void updateScrollCornerStyle();
+    void updateMinimumSizeForResizing();
 
     // See comments on isPointInResizeControl.
     IntRect resizerCornerRect(const IntRect&, ResizerHitTestType) const;
     bool overflowControlsIntersectRect(const IntRect& localRect) const;
     void updateResizerAreaSet();
     void updateResizerStyle();
     void drawPlatformResizerImage(GraphicsContext*, IntRect resizerCornerRect);
 
     RenderLayer* layer() const;
 
@@ skipping 17 matching lines @@
     unsigned m_needsCompositedScrolling : 1;
 
     ForceNeedsCompositedScrollingMode m_forceNeedsCompositedScrolling;
 
     // The width/height of our scrolled area.
     LayoutRect m_overflowRect;
 
     // This is the (scroll) offset from scrollOrigin().
     IntSize m_scrollOffset;
 
+    // This is the minimum size for resizing.
+    LayoutSize m_minimumSizeForResizing;
+
     IntPoint m_cachedOverlayScrollbarOffset;
 
     // For areas with overflow, we have a pair of scrollbars.
     RefPtr<Scrollbar> m_hBar;
     RefPtr<Scrollbar> m_vBar;
 
     // Renderers to hold our custom scroll corner.
     RenderScrollbarPart* m_scrollCorner;
 
     // Renderers to hold our custom resizer.
     RenderScrollbarPart* m_resizer;
 };
 
 } // Namespace WebCore
 
 #endif // RenderLayerScrollableArea_h