Rename paint data structures

chrome/browser/ui/libgtkui/native_theme_gtk2.h

Index: chrome/browser/ui/libgtkui/native_theme_gtk2.h
diff --git a/chrome/browser/ui/libgtkui/native_theme_gtk2.h b/chrome/browser/ui/libgtkui/native_theme_gtk2.h
index 8975ee2d46ebcec1505c9901a95221195e597c74..8bda39541f595624df605b0d2756f2c061b25585 100644
--- a/chrome/browser/ui/libgtkui/native_theme_gtk2.h
+++ b/chrome/browser/ui/libgtkui/native_theme_gtk2.h
@@ -22,11 +22,11 @@ class NativeThemeGtk2 : public ui::NativeThemeBase {
   // Overridden from ui::NativeThemeBase:
   SkColor GetSystemColor(ColorId color_id) const override;
   void PaintMenuPopupBackground(
-      SkCanvas* canvas,
+      cc::PaintCanvas* canvas,
       const gfx::Size& size,
       const MenuBackgroundExtraParams& menu_background) const override;
   void PaintMenuItemBackground(
-      SkCanvas* canvas,
+      cc::PaintCanvas* canvas,
       State state,
       const gfx::Rect& rect,
       const MenuItemExtraParams& menu_item) const override;