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

src/pdf/SkPDFDevice.h

Index: src/pdf/SkPDFDevice.h
diff --git a/src/pdf/SkPDFDevice.h b/src/pdf/SkPDFDevice.h
index be0a277ff578eee75ff73927892a082754cf5fbb..7d207e7cf9441c6ad4151894fdde5f741d072a23 100644
--- a/src/pdf/SkPDFDevice.h
+++ b/src/pdf/SkPDFDevice.h
@@ -246,7 +246,7 @@ private:
                                  sk_sp<SkPDFObject> mask,
                                  const SkClipStack* clipStack,
                                  const SkRegion& clipRegion,
-                                 SkXfermode::Mode mode,
+                                 SkBlendMode,
                                  bool invertClip);
 
     // If the paint or clip is such that we shouldn't draw anything, this
@@ -259,9 +259,7 @@ private:
                                     const SkPaint& paint,
                                     bool hasText,
                                     sk_sp<SkPDFObject>* dst);
-    void finishContentEntry(SkXfermode::Mode xfermode,
-                            sk_sp<SkPDFObject> dst,
-                            SkPath* shape);
+    void finishContentEntry(SkBlendMode, sk_sp<SkPDFObject> dst, SkPath* shape);
     bool isContentEmpty();
 
     void populateGraphicStateEntryFromPaint(const SkMatrix& matrix,