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

src/core/SkMatrixImageFilter.cpp

 /*
  * Copyright 2014 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkMatrixImageFilter.h"
 
 #include "SkCanvas.h"
@@ skipping 67 matching lines @@
     SkCanvas* canvas = surf->getCanvas();
     SkASSERT(canvas);
 
     canvas->clear(0x0);
 
     canvas->translate(-SkIntToScalar(dstBounds.x()), -SkIntToScalar(dstBounds.y()));
     canvas->concat(matrix);
 
     SkPaint paint;
     paint.setAntiAlias(true);
-    paint.setXfermodeMode(SkXfermode::kSrc_Mode);
+    paint.setBlendMode(SkBlendMode::kSrc);
     paint.setFilterQuality(fFilterQuality);
 
     input->draw(canvas, srcRect.x(), srcRect.y(), &paint);
 
     offset->fX = dstBounds.fLeft;
     offset->fY = dstBounds.fTop;
     return surf->makeImageSnapshot();
 }
 
 SkRect SkMatrixImageFilter::computeFastBounds(const SkRect& src) const {
@@ skipping 40 matching lines @@
                  fTransform[SkMatrix::kMPersp2]);
 
     str->append("<dt>FilterLevel:</dt><dd>");
     static const char* gFilterLevelStrings[] = { "None", "Low", "Medium", "High" };
     str->append(gFilterLevelStrings[fFilterQuality]);
     str->append("</dd>");
 
     str->appendf(")");
 }
 #endif