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

gm/textblobblockreordering.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 
 #include "SkCanvas.h"
@@ skipping 51 matching lines @@
         canvas->drawTextBlob(fBlob, 0, 0, paint);
 
         canvas->translate(SkIntToScalar(xDelta), SkIntToScalar(yDelta));
 
         // draw a rect where the text should be, and then twiddle the xfermode
         // so we don't batch
         SkPaint redPaint;
         redPaint.setColor(SK_ColorRED);
         canvas->drawRect(bounds, redPaint);
         SkPaint srcInPaint(paint);
-        srcInPaint.setXfermodeMode(SkXfermode::kSrcIn_Mode);
+        srcInPaint.setBlendMode(SkBlendMode::kSrcIn);
         canvas->drawTextBlob(fBlob, 0, 0, srcInPaint);
 
         canvas->translate(SkIntToScalar(xDelta), SkIntToScalar(yDelta));
         canvas->drawTextBlob(fBlob, 0, 0, paint);
     }
 
 private:
     sk_sp<SkTextBlob> fBlob;
 
     static constexpr int kWidth = 275;
     static constexpr int kHeight = 200;
 
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM(return new TextBlobBlockReordering;)
 }