Fix GDI leak in NativeThemeWin::PaintIndirect

skia/ext/skia_utils_win.h

Index: skia/ext/skia_utils_win.h
diff --git a/skia/ext/skia_utils_win.h b/skia/ext/skia_utils_win.h
index 368d91b895fa200bd2d0203ba590e63f7a5875e5..bb979b67a2777e985c632a59f249635be4514b98 100644
--- a/skia/ext/skia_utils_win.h
+++ b/skia/ext/skia_utils_win.h
@@ -71,13 +71,6 @@ SK_API sk_sp<SkSurface> MapPlatformSurface(HDC context);
 // Returns an empty bitmap on error.
 SK_API SkBitmap MapPlatformBitmap(HDC context);
 
-// Creates an offscreen HDC suitable for writing to via MapPlatformSurface().
-// Caller is responsible for calling DeleteDC() when done.
-// Will return null if any errors are encountered.
-// TODO(fmalita): consider returning ScopedCreateDC() when that type is
-// returnable (https://crbug.com/622442)
-SK_API HDC CreateOffscreenSurface(int width, int height);
-
 // Fills in a BITMAPINFOHEADER structure given the bitmap's size.
 SK_API void CreateBitmapHeader(int width, int height, BITMAPINFOHEADER* hdr);