Use SkTextEncoding enum instead of macros.

Change-Id: I4b6259590fa0693ee0522b4999a1c0fe250b173d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/212504
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
diff --git a/gm/complexclip.cpp b/gm/complexclip.cpp
index 64922b6..3e53783 100644
--- a/gm/complexclip.cpp
+++ b/gm/complexclip.cpp
@@ -152,15 +152,15 @@
                 SkScalar txtX = 45;
                 paint.setColor(gClipAColor);
                 const char* aTxt = doInvA ? "InvA " : "A ";
-                canvas->drawSimpleText(aTxt, strlen(aTxt), kUTF8_SkTextEncoding, txtX, 220, font, paint);
-                txtX += font.measureText(aTxt, strlen(aTxt), kUTF8_SkTextEncoding);
+                canvas->drawSimpleText(aTxt, strlen(aTxt), SkTextEncoding::kUTF8, txtX, 220, font, paint);
+                txtX += font.measureText(aTxt, strlen(aTxt), SkTextEncoding::kUTF8);
                 paint.setColor(SK_ColorBLACK);
-                canvas->drawSimpleText(gOps[op].fName, strlen(gOps[op].fName), kUTF8_SkTextEncoding, txtX, 220,
+                canvas->drawSimpleText(gOps[op].fName, strlen(gOps[op].fName), SkTextEncoding::kUTF8, txtX, 220,
                                        font, paint);
-                txtX += font.measureText(gOps[op].fName, strlen(gOps[op].fName), kUTF8_SkTextEncoding);
+                txtX += font.measureText(gOps[op].fName, strlen(gOps[op].fName), SkTextEncoding::kUTF8);
                 paint.setColor(gClipBColor);
                 const char* bTxt = doInvB ? "InvB " : "B ";
-                canvas->drawSimpleText(bTxt, strlen(bTxt), kUTF8_SkTextEncoding, txtX, 220, font, paint);
+                canvas->drawSimpleText(bTxt, strlen(bTxt), SkTextEncoding::kUTF8, txtX, 220, font, paint);
 
                 canvas->translate(250,0);
             }