Move more web widgets painting from webkit to chrome.

chrome/browser/chromeos/native_theme_chromeos.h

 // Copyright (c) 2010 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 CHROME_BROWSER_CHROMEOS_NATIVE_THEME_CHROMEOS_H_
 #define CHROME_BROWSER_CHROMEOS_NATIVE_THEME_CHROMEOS_H_
 
 #include <map>
 #include "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 GetSize(Part part) const;
-  virtual void PaintTrack(skia::PlatformCanvas* canvas,
+  virtual gfx::Size GetPartSize(Part part) const;
+  virtual void PaintScrollbarTrack(skia::PlatformCanvas* canvas,
       Part part, State state,
       const ScrollbarTrackExtraParams& extra_params,
       const gfx::Rect& rect);
   virtual void PaintArrowButton(skia::PlatformCanvas* canvas,
       const gfx::Rect& rect, Part direction, State state);
-  virtual void PaintThumb(skia::PlatformCanvas* canvas,
+  virtual void PaintScrollbarThumb(skia::PlatformCanvas* canvas,
       Part part, State state, const gfx::Rect& rect);
   SkBitmap* GetHorizontalBitmapNamed(int resource_id);
 
   // Cached images. The ResourceBundle 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  // CHROME_BROWSER_CHROMEOS_NATIVE_THEME_CHROMEOS_H_