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 6e785d43da02d58f352ff87cd2066a611f94d01b..c23c5fa2fb8fed46fabb5c9953b3546adaaa2c1f 100644
--- a/include/core/SkPicture.h
+++ b/include/core/SkPicture.h
@@ -277,11 +277,7 @@ private:
     friend class GrLayerHoister;               // access to fRecord
     friend class CollectLayers;                // access to fRecord
     friend class SkPicturePlayback;            // to get fData
-    friend void GrRecordReplaceDraw(const SkPicture* picture,
-                                    SkCanvas* canvas,
-                                    const GrReplacements* replacements,
-                                    const SkMatrix& initialMatrix,
-                                    SkDrawPictureCallback* callback);
+    friend class ReplaceDraw;
 
     typedef SkRefCnt INHERITED;