Revert "replace SkXfermode obj with SkBlendMode enum in paints"

This reverts commit I4fb489ba6b3f77b458f7e4a99f79c7ad10859135.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> replace SkXfermode obj with SkBlendMode enum in paints
> 
> BUG=skia:5814
> 
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2714
> 
> Change-Id: I4fb489ba6b3f77b458f7e4a99f79c7ad10859135
> Reviewed-on: https://skia-review.googlesource.com/2714
> Reviewed-by: Florin Malita <fmalita@chromium.org>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Mike Reed <reed@google.com>
> 

TBR=bsalomon@google.com,fmalita@chromium.org,fmalita@google.com,reed@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I3e43f79ef5c1709929663fe63cc1f67cd78270b7
Reviewed-on: https://skia-review.googlesource.com/2871
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/gm/xfermodes2.cpp b/gm/xfermodes2.cpp
index 03da0d3317..6f7d05475c 100644
--- a/gm/xfermodes2.cpp
+++ b/gm/xfermodes2.cpp
@@ -40,7 +40,7 @@ protected:
 
         SkScalar x = 0, y = 0;
         for (size_t m = 0; m <= SkXfermode::kLastMode; m++) {
-            SkBlendMode mode = static_cast<SkBlendMode>(m);
+            SkXfermode::Mode mode = static_cast<SkXfermode::Mode>(m);
 
             canvas->save();
 
@@ -57,7 +57,7 @@ protected:
             p.setShader(fDst);
             canvas->drawRect(r, p);
             p.setShader(fSrc);
-            p.setBlendMode(mode);
+            p.setXfermode(SkXfermode::Make(mode));
             canvas->drawRect(r, p);
 
             canvas->restore();
@@ -65,7 +65,7 @@ protected:
             r.inset(-SK_ScalarHalf, -SK_ScalarHalf);
             p.setStyle(SkPaint::kStroke_Style);
             p.setShader(nullptr);
-            p.setBlendMode(SkBlendMode::kSrcOver);
+            p.setXfermode(nullptr);
             canvas->drawRect(r, p);
 
             canvas->restore();