Use glops for text rendering

Change-Id: I5e155c8baf3149f0ff231ec3c89dbff6bb8eae92
diff --git a/libs/hwui/FontRenderer.h b/libs/hwui/FontRenderer.h
index cb63684..0603389 100644
--- a/libs/hwui/FontRenderer.h
+++ b/libs/hwui/FontRenderer.h
@@ -59,7 +59,9 @@
         , paint(paint) {
     }
 
-    status_t setup(GLenum glyphFormat);
+    void setup(GLenum glyphFormat);
+
+    void draw(CacheTexture& texture, bool linearFiltering);
 
     OpenGLRenderer* renderer;
     float x;