[NOT FOR COMMIT] Fully replace SkCanvas uses.

ui/native_theme/native_theme.h

Index: ui/native_theme/native_theme.h
diff --git a/ui/native_theme/native_theme.h b/ui/native_theme/native_theme.h
index 6ff56e053cb2328f40f4382f87293e856a94d8ca..92a08df3cccb6908710aa4299e883762ee996afa 100644
--- a/ui/native_theme/native_theme.h
+++ b/ui/native_theme/native_theme.h
@@ -8,12 +8,11 @@
 #include "base/macros.h"
 #include "base/observer_list.h"
 #include "build/build_config.h"
+#include "skia/ext/cdl_common.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/native_theme/native_theme_export.h"
 
-class SkCanvas;
-
 namespace gfx {
 class Rect;
 class Size;
@@ -228,7 +227,7 @@ class NATIVE_THEME_EXPORT NativeTheme {
                                 const ExtraParams& extra) const = 0;
 
   // Paint the part to the canvas.
-  virtual void Paint(SkCanvas* canvas,
+  virtual void Paint(CdlCanvas* canvas,
                      Part part,
                      State state,
                      const gfx::Rect& rect,
@@ -236,7 +235,7 @@ class NATIVE_THEME_EXPORT NativeTheme {
 
   // Paint part during state transition, used for overlay scrollbar state
   // transition animation.
-  virtual void PaintStateTransition(SkCanvas* canvas,
+  virtual void PaintStateTransition(CdlCanvas* canvas,
                                     Part part,
                                     State startState,
                                     State endState,