s/sk_tools::DrawCheckerboard/sk_tool_utils::draw_checkerboard/

tools/Checkerboard.h

-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#ifndef Checkerboard_DEFINED
-#define Checkerboard_DEFINED
-
-#include "SkColor.h"
-
-class SkCanvas;
-class SkShader;
-
-namespace sk_tools {
-
-/** Returns a newly created CheckerboardShader. */
-SkShader* CreateCheckerboardShader(SkColor c1, SkColor c2, int size);
-
-/** Draw a checkerboard pattern in the current canvas, restricted to
-    the current clip. */
-void DrawCheckerboard(SkCanvas* canvas,
-                      SkColor color1,
-                      SkColor color2,
-                      int size);
-
-/** A default checkerboard. */
-inline void DrawCheckerboard(SkCanvas* canvas) {
-    sk_tools::DrawCheckerboard(canvas, 0xFF999999, 0xFF666666, 8);
-}
-
-}  // namespace sk_tools
-
-#endif  // Checkerboard_DEFINED