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

src/core/SkPixmap.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkColorPriv.h"
 #include "SkConfig8888.h"
 #include "SkData.h"
@@ skipping 249 matching lines @@
     }
     bitmap.setIsVolatile(true); // so we don't try to cache it
 
     auto surface(SkSurface::MakeRasterDirect(dst.info(), dst.writable_addr(), dst.rowBytes()));
     if (!surface) {
         return false;
     }
 
     SkPaint paint;
     paint.setFilterQuality(quality);
-    paint.setXfermodeMode(SkXfermode::kSrc_Mode);
+    paint.setBlendMode(SkBlendMode::kSrc);
     surface->getCanvas()->drawBitmapRect(bitmap, SkRect::MakeIWH(dst.width(), dst.height()),
                                          &paint);
     return true;
 }
 
 //////////////////////////////////////////////////////////////////////////////////////////////////