Remove unused Textfield::SetShadows.

ui/views/controls/textfield/textfield.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_
 #define UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 121 matching lines @@
   void SetSelectionTextColor(SkColor color);
   void UseDefaultSelectionTextColor();
 
   // Gets/sets the selection background color to be used when painting the
   // Textfield. Call UseDefaultSelectionBackgroundColor() to restore the default
   // system color.
   SkColor GetSelectionBackgroundColor() const;
   void SetSelectionBackgroundColor(SkColor color);
   void UseDefaultSelectionBackgroundColor();
 
-  // Set drop shadows underneath the text.
-  void SetShadows(const gfx::ShadowValues& shadows);
-
   // Gets/Sets whether or not the cursor is enabled.
   bool GetCursorEnabled() const;
   void SetCursorEnabled(bool enabled);
 
   // Gets/Sets the fonts used when rendering the text within the Textfield.
   const gfx::FontList& GetFontList() const;
   void SetFontList(const gfx::FontList& font_list);
 
   // Sets the default width of the text control. See default_width_in_chars_.
   void set_default_width_in_chars(int default_width) {
@@ skipping 374 matching lines @@
 
   // Used to bind callback functions to this object.
   base::WeakPtrFactory<Textfield> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Textfield);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_