Update GrRecordReplaceDraw to use SkTDynamicHash & add ReplaceDraw

include/core/SkPicture.h

Index: include/core/SkPicture.h
diff --git a/include/core/SkPicture.h b/include/core/SkPicture.h
index 9da8de93836c50722b51a6d3bbcb867cba335492..fc59be796eed4d5bdc3a4c55c3d0c2f2f07c1ec4 100644
--- a/include/core/SkPicture.h
+++ b/include/core/SkPicture.h
@@ -301,11 +301,7 @@ private:
     friend class GrLayerHoister;               // access to fRecord
     friend class CollectLayers;                // access to fRecord
     friend class SkPicturePlayback;            // to get fData & OperationList
-    friend void GrRecordReplaceDraw(const SkPicture* picture,
-                                    SkCanvas* canvas,
-                                    const GrReplacements* replacements,
-                                    const SkMatrix& initialMatrix,
-                                    SkDrawPictureCallback* callback);
+    friend class ReplaceDraw;
 
     typedef SkRefCnt INHERITED;