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

src/pipe/SkPipeFormat.h

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkPipeFormat_DEFINED
 #define SkPipeFormat_DEFINED
 
@@ skipping 76 matching lines @@
 enum {
     kTextSize_NonDef    = 1 << 0,
     kTextScaleX_NonDef  = 1 << 1,
     kTextSkewX_NonDef   = 1 << 2,
     kStrokeWidth_NonDef = 1 << 3,
     kStrokeMiter_NonDef = 1 << 4,
     kColor_NonDef       = 1 << 5,
     kTypeface_NonDef    = 1 << 6,
     kPathEffect_NonDef  = 1 << 7,
     kShader_NonDef      = 1 << 8,
-    kXfermode_NonDef    = 1 << 9,
-    kMaskFilter_NonDef  = 1 << 10,
-    kColorFilter_NonDef = 1 << 11,
-    kRasterizer_NonDef  = 1 << 12,
-    kImageFilter_NonDef = 1 << 13,
-    kDrawLooper_NonDef  = 1 << 14,
+    kMaskFilter_NonDef  = 1 << 9,
+    kColorFilter_NonDef = 1 << 10,
+    kRasterizer_NonDef  = 1 << 11,
+    kImageFilter_NonDef = 1 << 12,
+    kDrawLooper_NonDef  = 1 << 13,
 };
 
 enum {
     kFlags_SaveLayerMask            = 0xFF,
     kHasBounds_SaveLayerMask        = 1 << 8,
     kHasPaint_SaveLayerMask         = 1 << 9,
     kHasBackdrop_SaveLayerMask      = 1 << 10,
     kDontClipToLayer_SaveLayerMask  = 1 << 11,
 };
 
@@ skipping 99 matching lines @@
 
 static inline SkPipeVerb unpack_verb(uint32_t data) {
     return (SkPipeVerb)(data >> 24);
 }
 
 static inline unsigned unpack_verb_extra(uint32_t data) {
     return data & 0xFFFFFF;
 }
 
 #endif