Rename paint data structures

chrome/browser/ui/libgtkui/native_theme_gtk3.cc

Index: chrome/browser/ui/libgtkui/native_theme_gtk3.cc
diff --git a/chrome/browser/ui/libgtkui/native_theme_gtk3.cc b/chrome/browser/ui/libgtkui/native_theme_gtk3.cc
index 74399f075518c5051a9e7a6a0b420f459de3a8fa..e0f9f5392ec621e3ff398afe5a1377d2490a3d4e 100644
--- a/chrome/browser/ui/libgtkui/native_theme_gtk3.cc
+++ b/chrome/browser/ui/libgtkui/native_theme_gtk3.cc
@@ -39,7 +39,7 @@ SkBitmap GetWidgetBitmap(const gfx::Size& size,
   return bitmap;
 }
 
-void PaintWidget(SkCanvas* canvas,
+void PaintWidget(cc::PaintCanvas* canvas,
                  const gfx::Rect& rect,
                  GtkStyleContext* context) {
   canvas->drawBitmap(GetWidgetBitmap(rect.size(), context), rect.x(), rect.y());
@@ -365,14 +365,14 @@ SkColor NativeThemeGtk3::GetSystemColor(ColorId color_id) const {
 }
 
 void NativeThemeGtk3::PaintMenuPopupBackground(
-    SkCanvas* canvas,
+    cc::PaintCanvas* canvas,
     const gfx::Size& size,
     const MenuBackgroundExtraParams& menu_background) const {
   PaintWidget(canvas, gfx::Rect(size), GetStyleContextFromCss("GtkMenu#menu"));
 }
 
 void NativeThemeGtk3::PaintMenuItemBackground(
-    SkCanvas* canvas,
+    cc::PaintCanvas* canvas,
     State state,
     const gfx::Rect& rect,
     const MenuItemExtraParams& menu_item) const {
@@ -382,7 +382,7 @@ void NativeThemeGtk3::PaintMenuItemBackground(
 }
 
 void NativeThemeGtk3::PaintFrameTopArea(
-    SkCanvas* canvas,
+    cc::PaintCanvas* canvas,
     State state,
     const gfx::Rect& rect,
     const FrameTopAreaExtraParams& frame_top_area) const {