Adding bulk plot reffer to cached textblobs

src/gpu/GrBatchFontCache.h

Index: src/gpu/GrBatchFontCache.h
diff --git a/src/gpu/GrBatchFontCache.h b/src/gpu/GrBatchFontCache.h
index 6300fbe212f1260308a8203fb5fbca9497eb7ea2..14e6404b35c8953657e9b78ef78fa57371f5a972 100644
--- a/src/gpu/GrBatchFontCache.h
+++ b/src/gpu/GrBatchFontCache.h
@@ -97,8 +97,10 @@ public:
     bool hasGlyph(GrGlyph* glyph);
 
     // To ensure the GrBatchAtlas does not evict the Glyph Mask from its texture backing store,
-    // the client must pass in the currentToken from the GrBatchTarget along with the GrGlyph
-    void setGlyphRefToken(GrGlyph*, GrBatchAtlas::BatchToken);
+    // the client must pass in the currentToken from the GrBatchTarget along with the GrGlyph.
+    // A BulkTokenReffer is used to manage bulk last ref token updating in the Atlas.
+    void setGlyphRefToken(GrBatchAtlas::BulkTokenReffer*, GrGlyph*, GrBatchAtlas::BatchToken);
+    void setRefTokenBulk(const GrBatchAtlas::BulkTokenReffer& reffer, GrMaskFormat format);
 
     // add to texture atlas that matches this format
     bool addToAtlas(GrBatchTextStrike*, GrBatchAtlas::AtlasID*, GrBatchTarget*,