Move distance field font code into SkGpuDevice

include/gpu/SkGpuDevice.h

Index: include/gpu/SkGpuDevice.h
diff --git a/include/gpu/SkGpuDevice.h b/include/gpu/SkGpuDevice.h
index d37f63d7a0724e9547f55860dfc1b364365b95ff..14ded78a7f935387a699a8285882b467e3e43f04 100644
--- a/include/gpu/SkGpuDevice.h
+++ b/include/gpu/SkGpuDevice.h
@@ -206,6 +206,16 @@ private:
                          SkCanvas::DrawBitmapRectFlags flags,
                          int tileSize);
 
+    /*
+     * For distance field fonts
+     */
+    void drawDFText(const char text[], size_t byteLength, 
+                    SkScalar x, SkScalar y,
+                    const SkPaint& paint);
+    void drawPosDFText(const char text[], size_t byteLength, 
+                       const SkScalar pos[], SkScalar constY, int scalarsPerPos,
+                       const SkPaint& paint);
+
     /**
      * Returns non-initialized instance.
      */