Remove unpremul/remul from SkArithmeticMode, both raster and GPU, since the SVG spec actually defin…

gm/xfermodeimagefilter.cpp

 /*
  * Copyright 2013 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 "SkArithmeticMode.h"
 #include "SkXfermodeImageFilter.h"
@@ skipping 117 matching lines @@
             SkAutoTUnref<SkImageFilter> filter(SkNEW_ARGS(SkXfermodeImageFilter, (mode, background)));
             paint.setImageFilter(filter);
             drawClippedBitmap(canvas, fBitmap, paint, SkIntToScalar(x), SkIntToScalar(y));
             x += fBitmap.width() + MARGIN;
             if (x + fBitmap.width() > WIDTH) {
                 x = 0;
                 y += fBitmap.height() + MARGIN;
             }
         }
         // Test arithmetic mode as image filter
-        SkAutoTUnref<SkXfermode> mode(SkArithmeticMode::Create(0, SK_Scalar1, SK_Scalar1, 0));
+        SkAutoTUnref<SkXfermode> mode(SkArithmeticMode::Create(0, SK_Scalar1, SK_Scalar1, 0, true));
         SkAutoTUnref<SkImageFilter> filter(SkNEW_ARGS(SkXfermodeImageFilter, (mode, background)));
         paint.setImageFilter(filter);
         drawClippedBitmap(canvas, fBitmap, paint, SkIntToScalar(x), SkIntToScalar(y));
         x += fBitmap.width() + MARGIN;
         if (x + fBitmap.width() > WIDTH) {
             x = 0;
             y += fBitmap.height() + MARGIN;
         }
         // Test NULL mode
         filter.reset(SkNEW_ARGS(SkXfermodeImageFilter, (NULL, background)));
         paint.setImageFilter(filter);
         drawClippedBitmap(canvas, fBitmap, paint, SkIntToScalar(x), SkIntToScalar(y));
     }
 private:
     typedef GM INHERITED;
     SkBitmap fBitmap, fCheckerboard;
     bool fInitialized;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static GM* MyFactory(void*) { return new XfermodeImageFilterGM; }
 static GMRegistry reg(MyFactory);
 
 }