Really fix SkVerticesPriv on MSVC 2017

Change-Id: Ifacd00d6cfff3edbac2781ec340f294d42ab2977
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/280816
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
diff --git a/src/core/SkVerticesPriv.h b/src/core/SkVerticesPriv.h
index e296ff6..e3e62aa 100644
--- a/src/core/SkVerticesPriv.h
+++ b/src/core/SkVerticesPriv.h
@@ -36,10 +36,11 @@
     const SkColor* colors() const { return fVertices->fColors; }
     const uint16_t* indices() const { return fVertices->fIndices; }
 
-private:
-    explicit SkVerticesPriv(SkVertices* vertices) : fVertices(vertices) {}
     // Never called due to RVO in priv(), but must exist for MSVC 2017.
     SkVerticesPriv(const SkVerticesPriv&) = default;
+
+private:
+    explicit SkVerticesPriv(SkVertices* vertices) : fVertices(vertices) {}
     SkVerticesPriv& operator=(const SkVerticesPriv&) = delete;
 
     // No taking addresses of this type