Make draw* lines responsible for cache management

src/gpu/text/GrAtlasTextBlob.h

Index: src/gpu/text/GrAtlasTextBlob.h
diff --git a/src/gpu/text/GrAtlasTextBlob.h b/src/gpu/text/GrAtlasTextBlob.h
index d99ae707e0d336acac520ad7c84d7a6922b039cd..c24dabd010cc7a2cebb49823335f3a9dd4716e55 100644
--- a/src/gpu/text/GrAtlasTextBlob.h
+++ b/src/gpu/text/GrAtlasTextBlob.h
@@ -290,6 +290,12 @@ public:
         }
     }
 
+    SkGlyphCache* setupCache(int runIndex,
+                             const SkSurfaceProps& props,
+                             const SkPaint& skPaint,
+                             const SkMatrix* viewMatrix,
+                             bool noGamma);
+
     // Appends a glyph to the blob.  If the glyph is too large, the glyph will be appended
     // as a path.
     void appendGlyph(int runIndex,