Revert[8] "replace SkXfermode obj with SkBlendMode enum in paints"

gm/texturedomaineffect.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 // This test only works with the GPU backend.
 
 #include "gm.h"
@@ skipping 39 matching lines @@
 
         SkColor colors1[] = { SK_ColorCYAN, SK_ColorLTGRAY, SK_ColorGRAY };
         paint.setShader(SkGradientShader::MakeSweep(65.f, 75.f, colors1, nullptr,
                                                     SK_ARRAY_COUNT(colors1)));
         canvas.drawOval(SkRect::MakeXYWH(-5.f, -5.f, fBmp.width() + 10.f, fBmp.height() + 10.f),
                         paint);
 
         SkColor colors2[] = { SK_ColorMAGENTA, SK_ColorLTGRAY, SK_ColorYELLOW };
         paint.setShader(SkGradientShader::MakeSweep(45.f, 55.f, colors2, nullptr,
                                                     SK_ARRAY_COUNT(colors2)));
-        paint.setXfermodeMode(SkXfermode::kDarken_Mode);
+        paint.setBlendMode(SkBlendMode::kDarken);
         canvas.drawOval(SkRect::MakeXYWH(-5.f, -5.f, fBmp.width() + 10.f, fBmp.height() + 10.f),
                         paint);
 
         SkColor colors3[] = { SK_ColorBLUE, SK_ColorLTGRAY, SK_ColorGREEN };
         paint.setShader(SkGradientShader::MakeSweep(25.f, 35.f, colors3, nullptr,
                                                     SK_ARRAY_COUNT(colors3)));
-        paint.setXfermodeMode(SkXfermode::kLighten_Mode);
+        paint.setBlendMode(SkBlendMode::kLighten);
         canvas.drawOval(SkRect::MakeXYWH(-5.f, -5.f, fBmp.width() + 10.f, fBmp.height() + 10.f),
                         paint);
     }
 
     void onDraw(SkCanvas* canvas) override {
         GrDrawContext* drawContext = canvas->internal_private_accessTopLayerDrawContext();
         if (!drawContext) {
             skiagm::GM::DrawGpuOnlyMessage(canvas);
             return;
         }
@@ skipping 66 matching lines @@
     static constexpr int      kTargetHeight = 100;
     SkBitmap fBmp;
 
     typedef GM INHERITED;
 };
 
 DEF_GM(return new TextureDomainEffect;)
 }
 
 #endif