Port uses of SkLazyPtr to SkOncePtr.

src/core/SkMiniRecorder.cpp

Index: src/core/SkMiniRecorder.cpp
diff --git a/src/core/SkMiniRecorder.cpp b/src/core/SkMiniRecorder.cpp
index 5161c64722b1324847fda3a33b6bb6bfb9c21614..0a4859f379ba6cb390d1b947e4a79872aef5c42f 100644
--- a/src/core/SkMiniRecorder.cpp
+++ b/src/core/SkMiniRecorder.cpp
@@ -7,8 +7,8 @@
 
 #include "SkCanvas.h"
 #include "SkTLazy.h"
-#include "SkLazyPtr.h"
 #include "SkMiniRecorder.h"
+#include "SkOncePtr.h"
 #include "SkPicture.h"
 #include "SkPictureCommon.h"
 #include "SkRecordDraw.h"
@@ -27,7 +27,7 @@ public:
     int    numSlowPaths()         const override { return 0; }
     bool   willPlayBackBitmaps()  const override { return false; }
 };
-SK_DECLARE_STATIC_LAZY_PTR(SkEmptyPicture, gEmptyPicture);
+SK_DECLARE_STATIC_ONCE_PTR(SkEmptyPicture, gEmptyPicture);
 
 template <typename T>
 class SkMiniPicture final : public SkPicture {
@@ -108,7 +108,7 @@ SkPicture* SkMiniRecorder::detachAsPicture(const SkRect& cull) {
         return new SkMiniPicture<Type>(cull, reinterpret_cast<Type*>(fBuffer.get()))
 
     switch (fState) {
-        case State::kEmpty: return SkRef(gEmptyPicture.get());
+        case State::kEmpty: return SkRef(gEmptyPicture.get([]{ return new SkEmptyPicture; }));
         CASE(DrawBitmapRectFixedSize);
         CASE(DrawPath);
         CASE(DrawRect);