[NOT FOR COMMIT] Fully replace SkCanvas uses.

ui/native_theme/native_theme_aura.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_NATIVE_THEME_NATIVE_THEME_AURA_H_
 #define UI_NATIVE_THEME_NATIVE_THEME_AURA_H_
 
 #include "base/macros.h"
 #include "ui/native_theme/native_theme_base.h"
 
 namespace ui {
 
 // Aura implementation of native theme support.
 class NATIVE_THEME_EXPORT NativeThemeAura : public NativeThemeBase {
  public:
   static NativeThemeAura* instance();
   static NativeThemeAura* web_instance();
 
  protected:
   explicit NativeThemeAura(bool use_overlay_scrollbars);
   ~NativeThemeAura() override;
 
   // Overridden from NativeThemeBase:
   SkColor GetSystemColor(ColorId color_id) const override;
   void PaintMenuPopupBackground(
-      SkCanvas* canvas,
+      CdlCanvas* canvas,
       const gfx::Size& size,
       const MenuBackgroundExtraParams& menu_background) const override;
   void PaintMenuItemBackground(
-      SkCanvas* canvas,
+      CdlCanvas* canvas,
       State state,
       const gfx::Rect& rect,
       const MenuItemExtraParams& menu_item) const override;
-  void PaintArrowButton(SkCanvas* gc,
+  void PaintArrowButton(CdlCanvas* gc,
                         const gfx::Rect& rect,
                         Part direction,
                         State state) const override;
-  void PaintScrollbarTrack(SkCanvas* canvas,
+  void PaintScrollbarTrack(CdlCanvas* canvas,
                            Part part,
                            State state,
                            const ScrollbarTrackExtraParams& extra_params,
                            const gfx::Rect& rect) const override;
-  void PaintScrollbarThumb(SkCanvas* canvas,
+  void PaintScrollbarThumb(CdlCanvas* canvas,
                            Part part,
                            State state,
                            const gfx::Rect& rect,
                            ScrollbarOverlayColorTheme theme) const override;
-  void PaintScrollbarCorner(SkCanvas* canvas,
+  void PaintScrollbarCorner(CdlCanvas* canvas,
                             State state,
                             const gfx::Rect& rect) const override;
   gfx::Size GetPartSize(Part part,
                         State state,
                         const ExtraParams& extra) const override;
 
  private:
   bool use_overlay_scrollbars_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeThemeAura);
 };
 
 }  // namespace ui
 
 #endif  // UI_NATIVE_THEME_NATIVE_THEME_AURA_H_