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/bench/FontCacheBench.cpp b/bench/FontCacheBench.cpp
index 75d421e..72a4d53 100644
--- a/bench/FontCacheBench.cpp
+++ b/bench/FontCacheBench.cpp
@@ -43,7 +43,7 @@
         while (*array != gUniqueGlyphIDs_Sentinel) {
             int count = count_glyphs(array);
             for (int i = 0; i < loops; ++i) {
-                (void)font.measureText(array, count * sizeof(uint16_t), kGlyphID_SkTextEncoding);
+                (void)font.measureText(array, count * sizeof(uint16_t), SkTextEncoding::kGlyphID);
             }
             array += count + 1;    // skip the sentinel
         }