Remove DrawFace enum from GrPipelineBuilder

This gets GrPipelineBuilder.h out of the headers

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2165283002

Committed: https://skia.googlesource.com/skia/+/da152ebb032c61bb2561bbb3e9a78037ad174d34
Review-Url: https://codereview.chromium.org/2165283002
diff --git a/src/gpu/text/GrBatchFontCache.h b/src/gpu/text/GrBatchFontCache.h
index 2aa67dd..9e08c53 100644
--- a/src/gpu/text/GrBatchFontCache.h
+++ b/src/gpu/text/GrBatchFontCache.h
@@ -9,6 +9,7 @@
 #define GrBatchFontCache_DEFINED
 
 #include "GrBatchAtlas.h"
+#include "GrCaps.h"
 #include "GrGlyph.h"
 #include "SkGlyphCache.h"
 #include "SkTDynamicHash.h"