Add textfield internal padding from FocusableBorder.

ui/views/controls/textfield/textfield.h

Index: ui/views/controls/textfield/textfield.h
diff --git a/ui/views/controls/textfield/textfield.h b/ui/views/controls/textfield/textfield.h
index e06a3326c81c3241b6d12072d66752b72fa5981b..fc382615f18df17e6dfac3b216bb5672d936e00c 100644
--- a/ui/views/controls/textfield/textfield.h
+++ b/ui/views/controls/textfield/textfield.h
@@ -205,6 +205,7 @@ class VIEWS_EXPORT Textfield : public View,
   virtual int GetBaseline() const OVERRIDE;
   virtual gfx::Size GetPreferredSize() const OVERRIDE;
   virtual const char* GetClassName() const OVERRIDE;
+  virtual void SetBorder(scoped_ptr<Border> b) OVERRIDE;
   virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event) OVERRIDE;
   virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE;
   virtual bool OnMouseDragged(const ui::MouseEvent& event) OVERRIDE;
@@ -396,6 +397,9 @@ class VIEWS_EXPORT Textfield : public View,
 
   scoped_ptr<Painter> focus_painter_;
 
+  // Padding beyond the preferred size where text may be painted.
+  gfx::Insets internal_padding_;
+
   // Flags indicating whether various system colors should be used, and if not,
   // what overriding color values should be used instead.
   bool use_default_text_color_;