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diff --git a/ui/gfx/native_theme_chromeos.h b/ui/gfx/native_theme_chromeos.h
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+++ b/ui/gfx/native_theme_chromeos.h
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+// Copyright (c) 2011 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_GFX_NATIVE_THEME_CHROMEOS_H_
+#define UI_GFX_NATIVE_THEME_CHROMEOS_H_
+
+#include <map>
+#include "base/compiler_specific.h"
+#include "ui/gfx/native_theme_linux.h"
+
+class SkBitmap;
+
+class NativeThemeChromeos : public gfx::NativeThemeLinux {
+ private:
+  friend class NativeThemeLinux;
+  NativeThemeChromeos();
+  virtual ~NativeThemeChromeos();
+
+  // Scrollbar painting overrides
+  virtual gfx::Size GetPartSize(Part part) const OVERRIDE;
+  virtual void PaintScrollbarTrack(skia::PlatformCanvas* canvas,
+      Part part, State state,
+      const ScrollbarTrackExtraParams& extra_params,
+      const gfx::Rect& rect) OVERRIDE;
+  virtual void PaintArrowButton(skia::PlatformCanvas* canvas,
+      const gfx::Rect& rect, Part direction, State state) OVERRIDE;
+  virtual void PaintScrollbarThumb(skia::PlatformCanvas* canvas,
+      Part part, State state, const gfx::Rect& rect) OVERRIDE;
+
+  // Draw the checkbox.
+  virtual void PaintCheckbox(skia::PlatformCanvas* canvas,
+      State state, const gfx::Rect& rect,
+      const ButtonExtraParams& button) OVERRIDE;
+
+  // Draw the radio.
+  virtual void PaintRadio(skia::PlatformCanvas* canvas,
+      State state,
+      const gfx::Rect& rect,
+      const ButtonExtraParams& button) OVERRIDE;
+
+  // Draw the push button.
+  virtual void PaintButton(skia::PlatformCanvas* canvas,
+      State state,
+      const gfx::Rect& rect,
+      const ButtonExtraParams& button) OVERRIDE;
+
+  // Draw the text field.
+  virtual void PaintTextField(skia::PlatformCanvas* canvas,
+      State state,
+      const gfx::Rect& rect,
+      const TextFieldExtraParams& text) OVERRIDE;
+
+  // Draw the slider track.
+  virtual void PaintSliderTrack(skia::PlatformCanvas* canvas,
+      State state,
+      const gfx::Rect& rect,
+      const SliderExtraParams& slider) OVERRIDE;
+
+  // Draw the slider thumb.
+  virtual void PaintSliderThumb(skia::PlatformCanvas* canvas,
+      State state,
+      const gfx::Rect& rect,
+      const SliderExtraParams& slider) OVERRIDE;
+
+  // Draw the inner spin button.
+  virtual void PaintInnerSpinButton(skia::PlatformCanvas* canvas,
+      State state,
+      const gfx::Rect& rect,
+      const InnerSpinButtonExtraParams& spin_button) OVERRIDE;
+
+  // Draw the progress bar.
+  virtual void PaintProgressBar(skia::PlatformCanvas* canvas,
+      State state,
+      const gfx::Rect& rect,
+      const ProgressBarExtraParams& progress_bar) OVERRIDE;
+
+  SkBitmap* GetHorizontalBitmapNamed(int resource_id);
+
+  // Paint a button like rounded rect with gradient background and stroke.
+  void PaintButtonLike(skia::PlatformCanvas* canvas,
+      State state, const gfx::Rect& rect, bool stroke_border);
+
+  // Cached images. Resource loader caches all retrieved bitmaps and keeps
+  // ownership of the pointers.
+  typedef std::map<int, SkBitmap*> SkImageMap;
+  SkImageMap horizontal_bitmaps_;
+
+  DISALLOW_COPY_AND_ASSIGN(NativeThemeChromeos);
+};
+
+#endif  // UI_GFX_NATIVE_THEME_CHROMEOS_H_