Remove skia::ScopedPlatformPaint

ui/native_theme/native_theme_win.cc

Index: ui/native_theme/native_theme_win.cc
diff --git a/ui/native_theme/native_theme_win.cc b/ui/native_theme/native_theme_win.cc
index e811036b3a34af0cf0a457ddb396159a29ea4886..46108aad1e5b86da7cdd1abf5949e10d4d7a477c 100644
--- a/ui/native_theme/native_theme_win.cc
+++ b/ui/native_theme/native_theme_win.cc
@@ -278,8 +278,7 @@ void NativeThemeWin::Paint(SkCanvas* canvas,
       break;
   }
 
-  skia::ScopedPlatformPaint paint(canvas);
-  HDC surface = paint.GetNativeDrawingContext();
+  HDC surface = skia::GetNativeDrawingContext(canvas);
 
   // When drawing the task manager or the bookmark editor, we draw into an
   // offscreen buffer, where we can use OS-specific drawing routines for